<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2024 Workiva-->
<!--r:b7209977-8fdb-488e-acea-935ec48f69f2,g:083c7b46-5763-4359-9142-c03af0b12dda-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://www.troweprice.com/role/CONSOLIDATEDBALANCESHEETSParenthetical" xlink:type="simple" xlink:href="trow-20231231.xsd#CONSOLIDATEDBALANCESHEETSParenthetical"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/CONSOLIDATEDBALANCESHEETSParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_09904c0a-6dee-4506-b410-5612517be0d1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_bcce87a7-c431-451a-be72-7f7ea99304d0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_09904c0a-6dee-4506-b410-5612517be0d1" xlink:to="loc_us-gaap_StatementTable_bcce87a7-c431-451a-be72-7f7ea99304d0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis_6ee87bbf-35f3-4345-9f3e-bcfd53624fd7" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_bcce87a7-c431-451a-be72-7f7ea99304d0" xlink:to="loc_srt_ConsolidatedEntitiesAxis_6ee87bbf-35f3-4345-9f3e-bcfd53624fd7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_6ee87bbf-35f3-4345-9f3e-bcfd53624fd7_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidatedEntitiesAxis_6ee87bbf-35f3-4345-9f3e-bcfd53624fd7" xlink:to="loc_srt_ConsolidatedEntitiesDomain_6ee87bbf-35f3-4345-9f3e-bcfd53624fd7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_fd1cc2a0-20b0-4c87-bdba-acf99a7119b1" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidatedEntitiesAxis_6ee87bbf-35f3-4345-9f3e-bcfd53624fd7" xlink:to="loc_srt_ConsolidatedEntitiesDomain_fd1cc2a0-20b0-4c87-bdba-acf99a7119b1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_3e2ee2d5-f77b-46ea-b774-ae8731fd85e2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableInterestEntityPrimaryBeneficiaryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_fd1cc2a0-20b0-4c87-bdba-acf99a7119b1" xlink:to="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_3e2ee2d5-f77b-46ea-b774-ae8731fd85e2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_AssetsOfVotingInterestEntitiesAndVariableInterestEntities_d33933b3-ea35-409a-98f5-8f9f9f972a92" xlink:href="trow-20231231.xsd#trow_AssetsOfVotingInterestEntitiesAndVariableInterestEntities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_09904c0a-6dee-4506-b410-5612517be0d1" xlink:to="loc_trow_AssetsOfVotingInterestEntitiesAndVariableInterestEntities_d33933b3-ea35-409a-98f5-8f9f9f972a92" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_LiabilitiesOfVotingInterestEntitiesAndVariableInterestEntities_7bc1990f-d0f1-424f-a427-426ed2bf4003" xlink:href="trow-20231231.xsd#trow_LiabilitiesOfVotingInterestEntitiesAndVariableInterestEntities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_09904c0a-6dee-4506-b410-5612517be0d1" xlink:to="loc_trow_LiabilitiesOfVotingInterestEntitiesAndVariableInterestEntities_7bc1990f-d0f1-424f-a427-426ed2bf4003" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/CONSOLIDATEDSTATEMENTSOFINCOME" xlink:type="simple" xlink:href="trow-20231231.xsd#CONSOLIDATEDSTATEMENTSOFINCOME"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/CONSOLIDATEDSTATEMENTSOFINCOME" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_956b3941-3056-41c7-9952-e06404ce9517" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_4c589c53-9398-4217-97fe-33c3ea25789c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_956b3941-3056-41c7-9952-e06404ce9517" xlink:to="loc_us-gaap_StatementTable_4c589c53-9398-4217-97fe-33c3ea25789c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_dd93b3d6-ae2c-47e8-8260-663f3ee03ca1" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_4c589c53-9398-4217-97fe-33c3ea25789c" xlink:to="loc_srt_ProductOrServiceAxis_dd93b3d6-ae2c-47e8-8260-663f3ee03ca1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_dd93b3d6-ae2c-47e8-8260-663f3ee03ca1_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_dd93b3d6-ae2c-47e8-8260-663f3ee03ca1" xlink:to="loc_srt_ProductsAndServicesDomain_dd93b3d6-ae2c-47e8-8260-663f3ee03ca1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_80b088a7-faf0-4106-ae46-db9eb16edf70" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_dd93b3d6-ae2c-47e8-8260-663f3ee03ca1" xlink:to="loc_srt_ProductsAndServicesDomain_80b088a7-faf0-4106-ae46-db9eb16edf70" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetManagement1Member_a48659b3-64ec-4d4c-ae3e-3ecdbb308892" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetManagement1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_80b088a7-faf0-4106-ae46-db9eb16edf70" xlink:to="loc_us-gaap_AssetManagement1Member_a48659b3-64ec-4d4c-ae3e-3ecdbb308892" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_CapitalAllocationBasedIncomeMember_89b61f14-04b2-4676-ae52-32455a0f5340" xlink:href="trow-20231231.xsd#trow_CapitalAllocationBasedIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_80b088a7-faf0-4106-ae46-db9eb16edf70" xlink:to="loc_trow_CapitalAllocationBasedIncomeMember_89b61f14-04b2-4676-ae52-32455a0f5340" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_AdministrativeDistributionAndServicingMember_641e4e1f-78c1-4b24-991d-df68c59595a0" xlink:href="trow-20231231.xsd#trow_AdministrativeDistributionAndServicingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_80b088a7-faf0-4106-ae46-db9eb16edf70" xlink:to="loc_trow_AdministrativeDistributionAndServicingMember_641e4e1f-78c1-4b24-991d-df68c59595a0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesAbstract_f85ea231-a92b-429a-a46c-b554c5d3a4a3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenuesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_956b3941-3056-41c7-9952-e06404ce9517" xlink:to="loc_us-gaap_RevenuesAbstract_f85ea231-a92b-429a-a46c-b554c5d3a4a3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_a5929568-4ace-41b2-955d-da4f2f1e3ff1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_f85ea231-a92b-429a-a46c-b554c5d3a4a3" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_a5929568-4ace-41b2-955d-da4f2f1e3ff1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpensesAbstract_165fc8ec-7c8d-436e-b1e5-86047e2a4d59" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingExpensesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_956b3941-3056-41c7-9952-e06404ce9517" xlink:to="loc_us-gaap_OperatingExpensesAbstract_165fc8ec-7c8d-436e-b1e5-86047e2a4d59" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LaborAndRelatedExpense_217492bf-eb42-4f32-9261-9fe812a6fc4e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LaborAndRelatedExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_165fc8ec-7c8d-436e-b1e5-86047e2a4d59" xlink:to="loc_us-gaap_LaborAndRelatedExpense_217492bf-eb42-4f32-9261-9fe812a6fc4e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_DistributionExpenses_755ea287-6fd7-45eb-9b3a-8c6a942c7b88" xlink:href="trow-20231231.xsd#trow_DistributionExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_165fc8ec-7c8d-436e-b1e5-86047e2a4d59" xlink:to="loc_trow_DistributionExpenses_755ea287-6fd7-45eb-9b3a-8c6a942c7b88" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketingAndAdvertisingExpense_593c203f-7510-4f65-8282-1ede127cbda1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MarketingAndAdvertisingExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_165fc8ec-7c8d-436e-b1e5-86047e2a4d59" xlink:to="loc_us-gaap_MarketingAndAdvertisingExpense_593c203f-7510-4f65-8282-1ede127cbda1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_ProductRelatedAndClientServicingExpenses_a451fb00-bd56-4a57-987b-22570a2e40a3" xlink:href="trow-20231231.xsd#trow_ProductRelatedAndClientServicingExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_165fc8ec-7c8d-436e-b1e5-86047e2a4d59" xlink:to="loc_trow_ProductRelatedAndClientServicingExpenses_a451fb00-bd56-4a57-987b-22570a2e40a3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_TechnologyDepreciationOccupancyAndFacilityExpenses_0a11a4a3-3fe7-4ce4-823d-b2a6ed218597" xlink:href="trow-20231231.xsd#trow_TechnologyDepreciationOccupancyAndFacilityExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_165fc8ec-7c8d-436e-b1e5-86047e2a4d59" xlink:to="loc_trow_TechnologyDepreciationOccupancyAndFacilityExpenses_0a11a4a3-3fe7-4ce4-823d-b2a6ed218597" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherGeneralAndAdministrativeExpense_540f8576-88f6-4639-bb43-2436bd88aa46" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherGeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_165fc8ec-7c8d-436e-b1e5-86047e2a4d59" xlink:to="loc_us-gaap_OtherGeneralAndAdministrativeExpense_540f8576-88f6-4639-bb43-2436bd88aa46" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueRecurringBasisUnobservableInputReconciliationLiabilityGainLossStatementOfIncomeExtensibleList_d94c5961-4813-4acb-8665-bbcd7c3b2620" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueRecurringBasisUnobservableInputReconciliationLiabilityGainLossStatementOfIncomeExtensibleList"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_165fc8ec-7c8d-436e-b1e5-86047e2a4d59" xlink:to="loc_us-gaap_FairValueRecurringBasisUnobservableInputReconciliationLiabilityGainLossStatementOfIncomeExtensibleList_d94c5961-4813-4acb-8665-bbcd7c3b2620" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetIndefiniteLivedExcludingGoodwillStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration_eb7162a5-9d7c-4c38-b93a-be3bc8d3c09b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ImpairmentOfIntangibleAssetIndefiniteLivedExcludingGoodwillStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_165fc8ec-7c8d-436e-b1e5-86047e2a4d59" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetIndefiniteLivedExcludingGoodwillStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration_eb7162a5-9d7c-4c38-b93a-be3bc8d3c09b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetFiniteLivedStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration_c33212bf-a4aa-401b-aa99-470de6c71b47" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ImpairmentOfIntangibleAssetFiniteLivedStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_165fc8ec-7c8d-436e-b1e5-86047e2a4d59" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetFiniteLivedStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration_c33212bf-a4aa-401b-aa99-470de6c71b47" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_937c74ba-d1c1-480b-9878-74ac30ab51d3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_165fc8ec-7c8d-436e-b1e5-86047e2a4d59" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_937c74ba-d1c1-480b-9878-74ac30ab51d3" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfAcquisitionCosts_84cca494-5cd2-40c0-965c-c6b7deb8f433" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AmortizationOfAcquisitionCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_165fc8ec-7c8d-436e-b1e5-86047e2a4d59" xlink:to="loc_us-gaap_AmortizationOfAcquisitionCosts_84cca494-5cd2-40c0-965c-c6b7deb8f433" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_fe4834bc-3b0e-4108-9fd3-b7f4b6e72cf5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_165fc8ec-7c8d-436e-b1e5-86047e2a4d59" xlink:to="loc_us-gaap_OperatingExpenses_fe4834bc-3b0e-4108-9fd3-b7f4b6e72cf5" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_b0fb33bf-5d00-42a9-a632-ae66d8e059a1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_956b3941-3056-41c7-9952-e06404ce9517" xlink:to="loc_us-gaap_OperatingIncomeLoss_b0fb33bf-5d00-42a9-a632-ae66d8e059a1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpenseAbstract_566d4349-f94e-4191-86a4-927d26ae5075" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NonoperatingIncomeExpenseAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_956b3941-3056-41c7-9952-e06404ce9517" xlink:to="loc_us-gaap_NonoperatingIncomeExpenseAbstract_566d4349-f94e-4191-86a4-927d26ae5075" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_InvestmentIncomeNonoperatingOtherThanConsolidatedSponsoredInvestmentPortfolios_2c492bc3-46d3-4347-9452-d999ee1a0361" xlink:href="trow-20231231.xsd#trow_InvestmentIncomeNonoperatingOtherThanConsolidatedSponsoredInvestmentPortfolios"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_566d4349-f94e-4191-86a4-927d26ae5075" xlink:to="loc_trow_InvestmentIncomeNonoperatingOtherThanConsolidatedSponsoredInvestmentPortfolios_2c492bc3-46d3-4347-9452-d999ee1a0361" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_InvestmentIncomeNonoperatingConsolidatedSponsoredInvestmentPortfolios_056b3eae-0582-4a53-9fc1-c3d6d8e7af57" xlink:href="trow-20231231.xsd#trow_InvestmentIncomeNonoperatingConsolidatedSponsoredInvestmentPortfolios"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_566d4349-f94e-4191-86a4-927d26ae5075" xlink:to="loc_trow_InvestmentIncomeNonoperatingConsolidatedSponsoredInvestmentPortfolios_056b3eae-0582-4a53-9fc1-c3d6d8e7af57" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_65293ddb-88d4-4014-9403-250878f0cccb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_566d4349-f94e-4191-86a4-927d26ae5075" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_65293ddb-88d4-4014-9403-250878f0cccb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_de9fa830-ff31-47d2-a8a6-a28676d4cda3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_566d4349-f94e-4191-86a4-927d26ae5075" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_de9fa830-ff31-47d2-a8a6-a28676d4cda3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_562cd15b-a144-4b39-a47a-61c756164de3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_956b3941-3056-41c7-9952-e06404ce9517" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_562cd15b-a144-4b39-a47a-61c756164de3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_ddc1e4a5-41e6-4999-9047-304579aee4cc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_956b3941-3056-41c7-9952-e06404ce9517" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_ddc1e4a5-41e6-4999-9047-304579aee4cc" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_6275a40c-32a6-4ac6-90cb-d0891a03b691" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_956b3941-3056-41c7-9952-e06404ce9517" xlink:to="loc_us-gaap_ProfitLoss_6275a40c-32a6-4ac6-90cb-d0891a03b691" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToRedeemableNoncontrollingInterest_54d51538-a731-44b8-9c68-bb9d708ff3de" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLossAttributableToRedeemableNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_956b3941-3056-41c7-9952-e06404ce9517" xlink:to="loc_us-gaap_NetIncomeLossAttributableToRedeemableNoncontrollingInterest_54d51538-a731-44b8-9c68-bb9d708ff3de" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_377f6275-51a9-44ed-8c19-676028dbe66c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_956b3941-3056-41c7-9952-e06404ce9517" xlink:to="loc_us-gaap_NetIncomeLoss_377f6275-51a9-44ed-8c19-676028dbe66c" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_230d515d-a61c-4bdf-8859-2600a0f6d3a5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_956b3941-3056-41c7-9952-e06404ce9517" xlink:to="loc_us-gaap_EarningsPerShareAbstract_230d515d-a61c-4bdf-8859-2600a0f6d3a5" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_358a522d-6da5-42f4-b210-f3225ca0c5de" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_230d515d-a61c-4bdf-8859-2600a0f6d3a5" xlink:to="loc_us-gaap_EarningsPerShareBasic_358a522d-6da5-42f4-b210-f3225ca0c5de" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_d42a50ca-fa6f-4767-b81d-619c4f134636" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_230d515d-a61c-4bdf-8859-2600a0f6d3a5" xlink:to="loc_us-gaap_EarningsPerShareDiluted_d42a50ca-fa6f-4767-b81d-619c4f134636" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME" xlink:type="simple" xlink:href="trow-20231231.xsd#CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_f7ed4c99-a9f6-4816-91ee-ac87f791c74d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_7a74bf70-1a7f-4a88-8557-d460dbbe199c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_f7ed4c99-a9f6-4816-91ee-ac87f791c74d" xlink:to="loc_us-gaap_StatementTable_7a74bf70-1a7f-4a88-8557-d460dbbe199c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis_8b393558-2ad8-4e54-8858-7ea7930db96b" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_7a74bf70-1a7f-4a88-8557-d460dbbe199c" xlink:to="loc_srt_ConsolidatedEntitiesAxis_8b393558-2ad8-4e54-8858-7ea7930db96b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_8b393558-2ad8-4e54-8858-7ea7930db96b_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidatedEntitiesAxis_8b393558-2ad8-4e54-8858-7ea7930db96b" xlink:to="loc_srt_ConsolidatedEntitiesDomain_8b393558-2ad8-4e54-8858-7ea7930db96b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_7ea91daa-3394-4201-a8d8-64cf0ae17379" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidatedEntitiesAxis_8b393558-2ad8-4e54-8858-7ea7930db96b" xlink:to="loc_srt_ConsolidatedEntitiesDomain_7ea91daa-3394-4201-a8d8-64cf0ae17379" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_63ccb743-3a5a-4faa-84fc-f84acabfdab1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableInterestEntityPrimaryBeneficiaryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_7ea91daa-3394-4201-a8d8-64cf0ae17379" xlink:to="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_63ccb743-3a5a-4faa-84fc-f84acabfdab1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvesteeMember_66441e28-30f6-43ce-b4e9-2c9f3bdd6ae5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityMethodInvesteeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_7ea91daa-3394-4201-a8d8-64cf0ae17379" xlink:to="loc_us-gaap_EquityMethodInvesteeMember_66441e28-30f6-43ce-b4e9-2c9f3bdd6ae5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_66604de2-4abd-4666-b68a-2428dc4d5c64" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f7ed4c99-a9f6-4816-91ee-ac87f791c74d" xlink:to="loc_us-gaap_ProfitLoss_66604de2-4abd-4666-b68a-2428dc4d5c64" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPeriodIncreaseDecreaseAbstract_674b7493-7f13-4d49-a748-15c15eaf7470" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeTaxPeriodIncreaseDecreaseAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f7ed4c99-a9f6-4816-91ee-ac87f791c74d" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPeriodIncreaseDecreaseAbstract_674b7493-7f13-4d49-a748-15c15eaf7470" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPeriodIncreaseDecreaseAbstract_f0f0eef7-5c1a-46e9-999c-4a942770e610" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPeriodIncreaseDecreaseAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPeriodIncreaseDecreaseAbstract_674b7493-7f13-4d49-a748-15c15eaf7470" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPeriodIncreaseDecreaseAbstract_f0f0eef7-5c1a-46e9-999c-4a942770e610" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax_cf4844bf-bac1-4610-8903-2dd91db9dec6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPeriodIncreaseDecreaseAbstract_f0f0eef7-5c1a-46e9-999c-4a942770e610" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax_cf4844bf-bac1-4610-8903-2dd91db9dec6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueRecurringBasisUnobservableInputReconciliationLiabilityGainLossStatementOfOtherComprehensiveIncomeExtensibleList_ab84acd9-4a6d-4c07-a1d9-2b8f45041cec" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueRecurringBasisUnobservableInputReconciliationLiabilityGainLossStatementOfOtherComprehensiveIncomeExtensibleList"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPeriodIncreaseDecreaseAbstract_f0f0eef7-5c1a-46e9-999c-4a942770e610" xlink:to="loc_us-gaap_FairValueRecurringBasisUnobservableInputReconciliationLiabilityGainLossStatementOfOtherComprehensiveIncomeExtensibleList_ab84acd9-4a6d-4c07-a1d9-2b8f45041cec" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax_33b20d63-8783-497d-b9ae-0dc6c88a5168" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPeriodIncreaseDecreaseAbstract_f0f0eef7-5c1a-46e9-999c-4a942770e610" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax_33b20d63-8783-497d-b9ae-0dc6c88a5168" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax_36c742ee-9a60-4fc8-aca0-3715f5a41fce" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPeriodIncreaseDecreaseAbstract_f0f0eef7-5c1a-46e9-999c-4a942770e610" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax_36c742ee-9a60-4fc8-aca0-3715f5a41fce" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax_78d291b8-beb1-400f-883e-889f86c3c1a0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTax_b6eb172b-92c6-4dd6-b5e5-224534b03774" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPeriodIncreaseDecreaseAbstract_674b7493-7f13-4d49-a748-15c15eaf7470" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTax_b6eb172b-92c6-4dd6-b5e5-224534b03774" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossTax_61244082-8b1c-40f8-a350-f5f35961ac11" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f7ed4c99-a9f6-4816-91ee-ac87f791c74d" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossTax_61244082-8b1c-40f8-a350-f5f35961ac11" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_5d7a53c5-f992-48b3-b7e6-d1acc0df2273" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f7ed4c99-a9f6-4816-91ee-ac87f791c74d" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_5d7a53c5-f992-48b3-b7e6-d1acc0df2273" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_9b7006b5-c927-4809-a444-38b5c44e4b76" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f7ed4c99-a9f6-4816-91ee-ac87f791c74d" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_9b7006b5-c927-4809-a444-38b5c44e4b76" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_7883ab1d-9c62-4bc8-b8e7-aa1d52d50190" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f7ed4c99-a9f6-4816-91ee-ac87f791c74d" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_7883ab1d-9c62-4bc8-b8e7-aa1d52d50190" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_0e8e59fd-725b-4ae6-bd4b-0e60f1baa22c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f7ed4c99-a9f6-4816-91ee-ac87f791c74d" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_0e8e59fd-725b-4ae6-bd4b-0e60f1baa22c" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSParenthetical" xlink:type="simple" xlink:href="trow-20231231.xsd#CONSOLIDATEDSTATEMENTSOFCASHFLOWSParenthetical"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_2af2c901-dcbf-4038-b330-ddbd4c855e56" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_1c3f5c38-95b2-47e1-897f-3ad89565444a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_2af2c901-dcbf-4038-b330-ddbd4c855e56" xlink:to="loc_us-gaap_StatementTable_1c3f5c38-95b2-47e1-897f-3ad89565444a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis_0a901bad-4e34-4cbd-8e92-2355ce947da5" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_1c3f5c38-95b2-47e1-897f-3ad89565444a" xlink:to="loc_srt_ConsolidatedEntitiesAxis_0a901bad-4e34-4cbd-8e92-2355ce947da5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_0a901bad-4e34-4cbd-8e92-2355ce947da5_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidatedEntitiesAxis_0a901bad-4e34-4cbd-8e92-2355ce947da5" xlink:to="loc_srt_ConsolidatedEntitiesDomain_0a901bad-4e34-4cbd-8e92-2355ce947da5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_293aa2e7-dda8-4ef1-a692-c5d054e0ae79" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidatedEntitiesAxis_0a901bad-4e34-4cbd-8e92-2355ce947da5" xlink:to="loc_srt_ConsolidatedEntitiesDomain_293aa2e7-dda8-4ef1-a692-c5d054e0ae79" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_ConsolidatedInvestmentPortfoliosMember_212239cb-8533-408d-9292-493c0bb488ab" xlink:href="trow-20231231.xsd#trow_ConsolidatedInvestmentPortfoliosMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_293aa2e7-dda8-4ef1-a692-c5d054e0ae79" xlink:to="loc_trow_ConsolidatedInvestmentPortfoliosMember_212239cb-8533-408d-9292-493c0bb488ab" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_ef707122-b7de-404a-ae8b-3055c3570965" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_2af2c901-dcbf-4038-b330-ddbd4c855e56" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_ef707122-b7de-404a-ae8b-3055c3570965" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="simple" xlink:href="trow-20231231.xsd#CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_6ffb572c-68c3-4a95-a7d7-fdad46330e5b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_bc518b83-5e83-4dd3-93e3-89a8d2f598e7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_6ffb572c-68c3-4a95-a7d7-fdad46330e5b" xlink:to="loc_us-gaap_StatementTable_bc518b83-5e83-4dd3-93e3-89a8d2f598e7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_36c3a04b-7f89-4e30-aa14-e2962353c289" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_bc518b83-5e83-4dd3-93e3-89a8d2f598e7" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_36c3a04b-7f89-4e30-aa14-e2962353c289" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_36c3a04b-7f89-4e30-aa14-e2962353c289_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_36c3a04b-7f89-4e30-aa14-e2962353c289" xlink:to="loc_us-gaap_EquityComponentDomain_36c3a04b-7f89-4e30-aa14-e2962353c289_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_01fbf385-5725-42fc-a02a-e7e10c07dd46" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_36c3a04b-7f89-4e30-aa14-e2962353c289" xlink:to="loc_us-gaap_EquityComponentDomain_01fbf385-5725-42fc-a02a-e7e10c07dd46" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ParentMember_8ec3b492-1468-4171-9c75-c03daf262506" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_01fbf385-5725-42fc-a02a-e7e10c07dd46" xlink:to="loc_us-gaap_ParentMember_8ec3b492-1468-4171-9c75-c03daf262506" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_da094ecd-8f7e-4657-81c1-1b88250c73ba" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_8ec3b492-1468-4171-9c75-c03daf262506" xlink:to="loc_us-gaap_CommonStockMember_da094ecd-8f7e-4657-81c1-1b88250c73ba" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_02946566-ff10-4ec1-8f5b-bb840a096d5f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_8ec3b492-1468-4171-9c75-c03daf262506" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_02946566-ff10-4ec1-8f5b-bb840a096d5f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsUnappropriatedMember_bd0851c4-0e6f-47da-90f6-8825079334b6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetainedEarningsUnappropriatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_8ec3b492-1468-4171-9c75-c03daf262506" xlink:to="loc_us-gaap_RetainedEarningsUnappropriatedMember_bd0851c4-0e6f-47da-90f6-8825079334b6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_b5876789-7600-4ce7-bc8e-2131785303a6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_8ec3b492-1468-4171-9c75-c03daf262506" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_b5876789-7600-4ce7-bc8e-2131785303a6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncontrollingInterestMember_59a896e5-6018-46ec-8180-0a27100a419a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NoncontrollingInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_01fbf385-5725-42fc-a02a-e7e10c07dd46" xlink:to="loc_us-gaap_NoncontrollingInterestMember_59a896e5-6018-46ec-8180-0a27100a419a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_f237022c-7d1e-4a2a-83ba-9533acd29594" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_bc518b83-5e83-4dd3-93e3-89a8d2f598e7" xlink:to="loc_us-gaap_AwardTypeAxis_f237022c-7d1e-4a2a-83ba-9533acd29594" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f237022c-7d1e-4a2a-83ba-9533acd29594_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_f237022c-7d1e-4a2a-83ba-9533acd29594" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f237022c-7d1e-4a2a-83ba-9533acd29594_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_8f986f43-c085-428a-9f28-d0a710f9de2f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_f237022c-7d1e-4a2a-83ba-9533acd29594" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_8f986f43-c085-428a-9f28-d0a710f9de2f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember_19df0add-04ae-4682-b9b8-271591d6563f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_8f986f43-c085-428a-9f28-d0a710f9de2f" xlink:to="loc_us-gaap_RestrictedStockMember_19df0add-04ae-4682-b9b8-271591d6563f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_492b62df-44f2-4548-857b-9ccf576ae136" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_8f986f43-c085-428a-9f28-d0a710f9de2f" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_492b62df-44f2-4548-857b-9ccf576ae136" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_831e40e9-3b0c-4462-86b7-0ec1ffd8ed77" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_6ffb572c-68c3-4a95-a7d7-fdad46330e5b" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_831e40e9-3b0c-4462-86b7-0ec1ffd8ed77" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesOutstanding_f7c273ff-b60f-49d2-9c67-60d1788f43f1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_831e40e9-3b0c-4462-86b7-0ec1ffd8ed77" xlink:to="loc_us-gaap_SharesOutstanding_f7c273ff-b60f-49d2-9c67-60d1788f43f1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_55b8987e-532d-4e81-ae16-7c6ac00e84ee" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_831e40e9-3b0c-4462-86b7-0ec1ffd8ed77" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_55b8987e-532d-4e81-ae16-7c6ac00e84ee" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_NetIncomeLossExcludingNoncontrollingInterestInConsolidatedEntities_b4f1d77a-4214-492c-b9c8-43496d1bfdfe" xlink:href="trow-20231231.xsd#trow_NetIncomeLossExcludingNoncontrollingInterestInConsolidatedEntities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_831e40e9-3b0c-4462-86b7-0ec1ffd8ed77" xlink:to="loc_trow_NetIncomeLossExcludingNoncontrollingInterestInConsolidatedEntities_b4f1d77a-4214-492c-b9c8-43496d1bfdfe" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_a59b45c5-73c0-4cd3-ad34-01c70895449c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_831e40e9-3b0c-4462-86b7-0ec1ffd8ed77" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_a59b45c5-73c0-4cd3-ad34-01c70895449c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsCash_5f2d75f1-935f-43e2-9c0b-520995ec5c02" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DividendsCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_831e40e9-3b0c-4462-86b7-0ec1ffd8ed77" xlink:to="loc_us-gaap_DividendsCash_5f2d75f1-935f-43e2-9c0b-520995ec5c02" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_SpecialDividendsCash_27482b6a-4238-40c6-9d6b-9b7458a21158" xlink:href="trow-20231231.xsd#trow_SpecialDividendsCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_831e40e9-3b0c-4462-86b7-0ec1ffd8ed77" xlink:to="loc_trow_SpecialDividendsCash_27482b6a-4238-40c6-9d6b-9b7458a21158" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharebasedCompensationAbstract_71ca10ed-43ad-44d9-a801-af87e4838172" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharebasedCompensationAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_831e40e9-3b0c-4462-86b7-0ec1ffd8ed77" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharebasedCompensationAbstract_71ca10ed-43ad-44d9-a801-af87e4838172" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_3f4a6e25-ff02-4e22-8570-f477ad31147c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharebasedCompensationAbstract_71ca10ed-43ad-44d9-a801-af87e4838172" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_3f4a6e25-ff02-4e22-8570-f477ad31147c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_c62bd26f-03ae-4014-9831-23f548ab72d1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharebasedCompensationAbstract_71ca10ed-43ad-44d9-a801-af87e4838172" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_c62bd26f-03ae-4014-9831-23f548ab72d1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfSharesWithheldForTaxes_59330f7c-8c46-4be8-a0d0-32f59125cd23" xlink:href="trow-20231231.xsd#trow_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfSharesWithheldForTaxes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharebasedCompensationAbstract_71ca10ed-43ad-44d9-a801-af87e4838172" xlink:to="loc_trow_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfSharesWithheldForTaxes_59330f7c-8c46-4be8-a0d0-32f59125cd23" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfSharesWithheldForTaxes_720c9384-8985-498a-abaf-0540151bbdfb" xlink:href="trow-20231231.xsd#trow_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfSharesWithheldForTaxes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharebasedCompensationAbstract_71ca10ed-43ad-44d9-a801-af87e4838172" xlink:to="loc_trow_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfSharesWithheldForTaxes_720c9384-8985-498a-abaf-0540151bbdfb" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_8546db45-cf82-459c-8eff-f983370b0310" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharebasedCompensationAbstract_71ca10ed-43ad-44d9-a801-af87e4838172" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_8546db45-cf82-459c-8eff-f983370b0310" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_DividendShareBasedPaymentArrangementPaidInKindShares_ed170d36-4638-485b-b761-27610ee7d316" xlink:href="trow-20231231.xsd#trow_DividendShareBasedPaymentArrangementPaidInKindShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharebasedCompensationAbstract_71ca10ed-43ad-44d9-a801-af87e4838172" xlink:to="loc_trow_DividendShareBasedPaymentArrangementPaidInKindShares_ed170d36-4638-485b-b761-27610ee7d316" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsSharebasedCompensationPaidInKind_e001c2c1-fc8f-4683-b4ec-bf08223be26f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DividendsSharebasedCompensationPaidInKind"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharebasedCompensationAbstract_71ca10ed-43ad-44d9-a801-af87e4838172" xlink:to="loc_us-gaap_DividendsSharebasedCompensationPaidInKind_e001c2c1-fc8f-4683-b4ec-bf08223be26f" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodShares_69275d49-8ca1-44d8-a400-dac0c4acbb7d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockRepurchasedDuringPeriodShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharebasedCompensationAbstract_71ca10ed-43ad-44d9-a801-af87e4838172" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodShares_69275d49-8ca1-44d8-a400-dac0c4acbb7d" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodValue_eb4c5f6c-3971-4e85-a5b5-d70b32232807" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockRepurchasedDuringPeriodValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharebasedCompensationAbstract_71ca10ed-43ad-44d9-a801-af87e4838172" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodValue_eb4c5f6c-3971-4e85-a5b5-d70b32232807" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_4900c331-59b7-4448-876c-9e9e9f644db9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesAcquisitions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharebasedCompensationAbstract_71ca10ed-43ad-44d9-a801-af87e4838172" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_4900c331-59b7-4448-876c-9e9e9f644db9" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_66e711f5-1824-484f-9f81-284a84105f7d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueAcquisitions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharebasedCompensationAbstract_71ca10ed-43ad-44d9-a801-af87e4838172" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_66e711f5-1824-484f-9f81-284a84105f7d" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders_d9cadc0d-4979-4c26-aa45-dd5cc72a54ec" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharebasedCompensationAbstract_71ca10ed-43ad-44d9-a801-af87e4838172" xlink:to="loc_us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders_d9cadc0d-4979-4c26-aa45-dd5cc72a54ec" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncontrollingInterestIncreaseFromBusinessCombination_a33a9915-42a8-4be8-93c1-ff0b8ef3b673" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NoncontrollingInterestIncreaseFromBusinessCombination"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharebasedCompensationAbstract_71ca10ed-43ad-44d9-a801-af87e4838172" xlink:to="loc_us-gaap_NoncontrollingInterestIncreaseFromBusinessCombination_a33a9915-42a8-4be8-93c1-ff0b8ef3b673" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesOutstanding_94e90f19-c6ab-479f-b3e9-5c331889c0dd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_7dea68e3-fb84-4ffb-b959-7e07a825885e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_e91e7bad-551e-407e-becb-a45325fefe94" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInTemporaryEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_6ffb572c-68c3-4a95-a7d7-fdad46330e5b" xlink:to="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_e91e7bad-551e-407e-becb-a45325fefe94" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_cdb13912-bd72-4ee3-83f1-6f46b2d837bd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_e91e7bad-551e-407e-becb-a45325fefe94" xlink:to="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_cdb13912-bd72-4ee3-83f1-6f46b2d837bd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToRedeemableNoncontrollingInterest_51262721-1ea0-4a31-b7f0-93390d176fa8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLossAttributableToRedeemableNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_e91e7bad-551e-407e-becb-a45325fefe94" xlink:to="loc_us-gaap_NetIncomeLossAttributableToRedeemableNoncontrollingInterest_51262721-1ea0-4a31-b7f0-93390d176fa8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_17de32fc-e884-48b6-bf95-bfb86f7ae836" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_e91e7bad-551e-407e-becb-a45325fefe94" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_17de32fc-e884-48b6-bf95-bfb86f7ae836" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_SubscriptionFromRedemptionDistributionToNoncontrollingInterest_3e116143-7458-4898-b53d-b793b6b8cde7" xlink:href="trow-20231231.xsd#trow_SubscriptionFromRedemptionDistributionToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_e91e7bad-551e-407e-becb-a45325fefe94" xlink:to="loc_trow_SubscriptionFromRedemptionDistributionToNoncontrollingInterest_3e116143-7458-4898-b53d-b793b6b8cde7" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_TemporaryEquityDecreaseDueToDeconsolidation_d60467e5-0d70-40eb-8f7f-44c3e80b98e4" xlink:href="trow-20231231.xsd#trow_TemporaryEquityDecreaseDueToDeconsolidation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_e91e7bad-551e-407e-becb-a45325fefe94" xlink:to="loc_trow_TemporaryEquityDecreaseDueToDeconsolidation_d60467e5-0d70-40eb-8f7f-44c3e80b98e4" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_f6e60dba-9297-4875-9d68-408ecdee9d77" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/BASISOFPREPARATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyEquipmentandSoftwareDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#BASISOFPREPARATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyEquipmentandSoftwareDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/BASISOFPREPARATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyEquipmentandSoftwareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_3d5dcc7e-e86c-40af-bd99-de71ab786692" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_ba110730-89fe-4269-a81b-d9f6f0af5191" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_3d5dcc7e-e86c-40af-bd99-de71ab786692" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_ba110730-89fe-4269-a81b-d9f6f0af5191" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_cea1cc3a-2ba5-4b35-8177-06542476fa7d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_ba110730-89fe-4269-a81b-d9f6f0af5191" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_cea1cc3a-2ba5-4b35-8177-06542476fa7d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_cea1cc3a-2ba5-4b35-8177-06542476fa7d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_cea1cc3a-2ba5-4b35-8177-06542476fa7d" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_cea1cc3a-2ba5-4b35-8177-06542476fa7d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_3f8012fc-0cbf-4e1c-a44d-0c90fbe9e49b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_cea1cc3a-2ba5-4b35-8177-06542476fa7d" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_3f8012fc-0cbf-4e1c-a44d-0c90fbe9e49b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_ComputerAndCommunicationsSoftwareAndEquipmentMember_68ee8e7c-b370-4071-989f-69243b66e7e8" xlink:href="trow-20231231.xsd#trow_ComputerAndCommunicationsSoftwareAndEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_3f8012fc-0cbf-4e1c-a44d-0c90fbe9e49b" xlink:to="loc_trow_ComputerAndCommunicationsSoftwareAndEquipmentMember_68ee8e7c-b370-4071-989f-69243b66e7e8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingAndBuildingImprovementsMember_9b27bbca-f6c2-43f0-a536-28d6d803a6db" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BuildingAndBuildingImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_3f8012fc-0cbf-4e1c-a44d-0c90fbe9e49b" xlink:to="loc_us-gaap_BuildingAndBuildingImprovementsMember_9b27bbca-f6c2-43f0-a536-28d6d803a6db" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseholdImprovementsMember_77296675-fa64-4d73-b85d-c7b6c25e132e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LeaseholdImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_3f8012fc-0cbf-4e1c-a44d-0c90fbe9e49b" xlink:to="loc_us-gaap_LeaseholdImprovementsMember_77296675-fa64-4d73-b85d-c7b6c25e132e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_265e2b4e-5877-4dc3-a125-9a45fab3dee5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FurnitureAndFixturesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_3f8012fc-0cbf-4e1c-a44d-0c90fbe9e49b" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_265e2b4e-5877-4dc3-a125-9a45fab3dee5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_1488cfff-79bb-42f0-929a-b915541c45de" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_3d5dcc7e-e86c-40af-bd99-de71ab786692" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_1488cfff-79bb-42f0-929a-b915541c45de" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/BASISOFPREPARATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESIntangibleAssetsDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#BASISOFPREPARATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESIntangibleAssetsDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/BASISOFPREPARATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_6da8970c-ed5e-4b4d-8fae-55329371f145" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_c73788ff-289e-4fa0-986b-0e695aecff74" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6da8970c-ed5e-4b4d-8fae-55329371f145" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_c73788ff-289e-4fa0-986b-0e695aecff74" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_96614636-614c-48a2-a3d0-f3bf95e26f00" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_c73788ff-289e-4fa0-986b-0e695aecff74" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_96614636-614c-48a2-a3d0-f3bf95e26f00" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_96614636-614c-48a2-a3d0-f3bf95e26f00_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_96614636-614c-48a2-a3d0-f3bf95e26f00" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_96614636-614c-48a2-a3d0-f3bf95e26f00_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_d37d386b-7aeb-4990-84f8-d6e3175d92ad" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_96614636-614c-48a2-a3d0-f3bf95e26f00" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_d37d386b-7aeb-4990-84f8-d6e3175d92ad" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_InvestmentAdvisoryAgreementsMember_66549850-d22f-460e-aeef-c3ea47c57bed" xlink:href="trow-20231231.xsd#trow_InvestmentAdvisoryAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_d37d386b-7aeb-4990-84f8-d6e3175d92ad" xlink:to="loc_trow_InvestmentAdvisoryAgreementsMember_66549850-d22f-460e-aeef-c3ea47c57bed" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_e5c942f8-5766-46d1-a227-d5dc8dce5439" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6da8970c-ed5e-4b4d-8fae-55329371f145" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_e5c942f8-5766-46d1-a227-d5dc8dce5439" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/BASISOFPREPARATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRevenueRecognitionDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#BASISOFPREPARATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRevenueRecognitionDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/BASISOFPREPARATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRevenueRecognitionDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_2f57c641-565e-4215-b17c-94ca77708998" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_b0a2aaf1-609d-4a5d-acc2-0a6b4572eb9a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_2f57c641-565e-4215-b17c-94ca77708998" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_b0a2aaf1-609d-4a5d-acc2-0a6b4572eb9a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_cf12c516-3157-4d33-9e1e-cdb639a03f48" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_b0a2aaf1-609d-4a5d-acc2-0a6b4572eb9a" xlink:to="loc_srt_ProductOrServiceAxis_cf12c516-3157-4d33-9e1e-cdb639a03f48" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_cf12c516-3157-4d33-9e1e-cdb639a03f48_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_cf12c516-3157-4d33-9e1e-cdb639a03f48" xlink:to="loc_srt_ProductsAndServicesDomain_cf12c516-3157-4d33-9e1e-cdb639a03f48_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_63047407-9556-458c-8e28-f18573b0d75d" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_cf12c516-3157-4d33-9e1e-cdb639a03f48" xlink:to="loc_srt_ProductsAndServicesDomain_63047407-9556-458c-8e28-f18573b0d75d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentAdviceMember_d4e95b64-e3c4-44fc-b0aa-8b52eeefe0d9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentAdviceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_63047407-9556-458c-8e28-f18573b0d75d" xlink:to="loc_us-gaap_InvestmentAdviceMember_d4e95b64-e3c4-44fc-b0aa-8b52eeefe0d9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DistributionServiceMember_f26bb1b1-6e00-466d-ac9a-e58119fbbcfd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DistributionServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_63047407-9556-458c-8e28-f18573b0d75d" xlink:to="loc_us-gaap_DistributionServiceMember_f26bb1b1-6e00-466d-ac9a-e58119fbbcfd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdministrativeServiceMember_c128f847-a71e-4924-b474-3c78265ef5c2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdministrativeServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_63047407-9556-458c-8e28-f18573b0d75d" xlink:to="loc_us-gaap_AdministrativeServiceMember_c128f847-a71e-4924-b474-3c78265ef5c2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_OherAdministrativeServiceMember_9d497c25-c8ca-4479-9c5c-d897d7d3b493" xlink:href="trow-20231231.xsd#trow_OherAdministrativeServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_63047407-9556-458c-8e28-f18573b0d75d" xlink:to="loc_trow_OherAdministrativeServiceMember_9d497c25-c8ca-4479-9c5c-d897d7d3b493" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_NumberOfPerformanceObligations_4b751984-d661-4a12-b8c1-8cfab06fed58" xlink:href="trow-20231231.xsd#trow_NumberOfPerformanceObligations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_2f57c641-565e-4215-b17c-94ca77708998" xlink:to="loc_trow_NumberOfPerformanceObligations_4b751984-d661-4a12-b8c1-8cfab06fed58" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/BASISOFPREPARATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESStockbasedCompensationDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#BASISOFPREPARATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESStockbasedCompensationDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/BASISOFPREPARATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESStockbasedCompensationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8ed99e64-db3c-4783-ba3e-44a09d815454" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_6fa7f48e-4cee-43f0-9594-43dc0f06be98" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8ed99e64-db3c-4783-ba3e-44a09d815454" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_6fa7f48e-4cee-43f0-9594-43dc0f06be98" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_7b846f5a-bab3-40fd-b615-a2b8370787d5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_6fa7f48e-4cee-43f0-9594-43dc0f06be98" xlink:to="loc_us-gaap_PlanNameAxis_7b846f5a-bab3-40fd-b615-a2b8370787d5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_7b846f5a-bab3-40fd-b615-a2b8370787d5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_7b846f5a-bab3-40fd-b615-a2b8370787d5" xlink:to="loc_us-gaap_PlanNameDomain_7b846f5a-bab3-40fd-b615-a2b8370787d5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_e5c3c3fa-32dd-45e9-986e-535f5c8704f6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_7b846f5a-bab3-40fd-b615-a2b8370787d5" xlink:to="loc_us-gaap_PlanNameDomain_e5c3c3fa-32dd-45e9-986e-535f5c8704f6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_EmployeeStockBasedCompensationProgramsMember_ad6655fa-f7c7-4e7e-a49e-5a38ac797bcc" xlink:href="trow-20231231.xsd#trow_EmployeeStockBasedCompensationProgramsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_e5c3c3fa-32dd-45e9-986e-535f5c8704f6" xlink:to="loc_trow_EmployeeStockBasedCompensationProgramsMember_ad6655fa-f7c7-4e7e-a49e-5a38ac797bcc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_DirectorPlansMember_3885f7d8-5fd9-4c95-a06c-d510507749a5" xlink:href="trow-20231231.xsd#trow_DirectorPlansMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_e5c3c3fa-32dd-45e9-986e-535f5c8704f6" xlink:to="loc_trow_DirectorPlansMember_3885f7d8-5fd9-4c95-a06c-d510507749a5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_A2017NonEmployeeDirectorEquityPlanMember_afc1276e-8079-425f-80b2-188e41b0284a" xlink:href="trow-20231231.xsd#trow_A2017NonEmployeeDirectorEquityPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_trow_DirectorPlansMember_3885f7d8-5fd9-4c95-a06c-d510507749a5" xlink:to="loc_trow_A2017NonEmployeeDirectorEquityPlanMember_afc1276e-8079-425f-80b2-188e41b0284a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_A2020LongTermIncentivePlanAndThe2017NonEmployeeDirectorEquityPlanMember_26d2cf20-93f7-4988-8a69-f68ba4307219" xlink:href="trow-20231231.xsd#trow_A2020LongTermIncentivePlanAndThe2017NonEmployeeDirectorEquityPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_e5c3c3fa-32dd-45e9-986e-535f5c8704f6" xlink:to="loc_trow_A2020LongTermIncentivePlanAndThe2017NonEmployeeDirectorEquityPlanMember_26d2cf20-93f7-4988-8a69-f68ba4307219" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_c763270c-5dd3-4264-aae1-f9b4b5ac6abf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_6fa7f48e-4cee-43f0-9594-43dc0f06be98" xlink:to="loc_us-gaap_AwardTypeAxis_c763270c-5dd3-4264-aae1-f9b4b5ac6abf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_c763270c-5dd3-4264-aae1-f9b4b5ac6abf_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_c763270c-5dd3-4264-aae1-f9b4b5ac6abf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_c763270c-5dd3-4264-aae1-f9b4b5ac6abf_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4c840487-9278-4969-a2be-f95416d89731" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_c763270c-5dd3-4264-aae1-f9b4b5ac6abf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4c840487-9278-4969-a2be-f95416d89731" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_RestrictedStockAndRestrictedStockUnitsMember_33db868d-ae2f-4d67-bb81-2b3cffd340f1" xlink:href="trow-20231231.xsd#trow_RestrictedStockAndRestrictedStockUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4c840487-9278-4969-a2be-f95416d89731" xlink:to="loc_trow_RestrictedStockAndRestrictedStockUnitsMember_33db868d-ae2f-4d67-bb81-2b3cffd340f1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_a4a61613-45e6-4f52-b737-c10c6ce74b13" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4c840487-9278-4969-a2be-f95416d89731" xlink:to="loc_us-gaap_EmployeeStockOptionMember_a4a61613-45e6-4f52-b737-c10c6ce74b13" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_StockholderApprovedPlansForStockOptions_6511ede0-5ddd-492f-a687-e7ad23f3f11f" xlink:href="trow-20231231.xsd#trow_StockholderApprovedPlansForStockOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8ed99e64-db3c-4783-ba3e-44a09d815454" xlink:to="loc_trow_StockholderApprovedPlansForStockOptions_6511ede0-5ddd-492f-a687-e7ad23f3f11f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_0771caff-4fd9-4118-a71f-2be7cae54bc6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8ed99e64-db3c-4783-ba3e-44a09d815454" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_0771caff-4fd9-4118-a71f-2be7cae54bc6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_90df4e37-8122-4052-aa02-5b0d3b2a743c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8ed99e64-db3c-4783-ba3e-44a09d815454" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_90df4e37-8122-4052-aa02-5b0d3b2a743c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_36fed619-ebc7-468d-be88-67ec8f3225be" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8ed99e64-db3c-4783-ba3e-44a09d815454" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_36fed619-ebc7-468d-be88-67ec8f3225be" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/CASHEQUIVALENTSDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#CASHEQUIVALENTSDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/CASHEQUIVALENTSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_b1b67e70-04bb-47b4-9d32-9f048d9fc564" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTable_1fd3020c-c6f2-41d1-b0aa-26ba3a26dd9f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_b1b67e70-04bb-47b4-9d32-9f048d9fc564" xlink:to="loc_us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTable_1fd3020c-c6f2-41d1-b0aa-26ba3a26dd9f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAxis_88b9d153-10c2-4007-89d0-4878df8d2ca2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTable_1fd3020c-c6f2-41d1-b0aa-26ba3a26dd9f" xlink:to="loc_us-gaap_CashAndCashEquivalentsAxis_88b9d153-10c2-4007-89d0-4878df8d2ca2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_88b9d153-10c2-4007-89d0-4878df8d2ca2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_88b9d153-10c2-4007-89d0-4878df8d2ca2" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_88b9d153-10c2-4007-89d0-4878df8d2ca2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_2d16f656-4636-4a6c-a49b-479b32355a10" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_88b9d153-10c2-4007-89d0-4878df8d2ca2" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_2d16f656-4636-4a6c-a49b-479b32355a10" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsMember_5a67a506-a9f7-417b-9f47-59d24b4a8a40" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MoneyMarketFundsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_2d16f656-4636-4a6c-a49b-479b32355a10" xlink:to="loc_us-gaap_MoneyMarketFundsMember_5a67a506-a9f7-417b-9f47-59d24b4a8a40" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsAtCarryingValue_4962426d-f1ba-4a5d-b4bd-4962592a949a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MoneyMarketFundsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_b1b67e70-04bb-47b4-9d32-9f048d9fc564" xlink:to="loc_us-gaap_MoneyMarketFundsAtCarryingValue_4962426d-f1ba-4a5d-b4bd-4962592a949a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeDividend_117a3760-85b4-4812-8413-d5213deb9010" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentIncomeDividend"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_b1b67e70-04bb-47b4-9d32-9f048d9fc564" xlink:to="loc_us-gaap_InvestmentIncomeDividend_117a3760-85b4-4812-8413-d5213deb9010" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/INFORMATIONABOUTRECEIVABLESREVENUESANDSERVICESInvestmentAdvisoryServicesDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#INFORMATIONABOUTRECEIVABLESREVENUESANDSERVICESInvestmentAdvisoryServicesDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/INFORMATIONABOUTRECEIVABLESREVENUESANDSERVICESInvestmentAdvisoryServicesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_trow_RevenueAndServicesLineItems_35595317-12cf-438d-8369-3a0145dc5586" xlink:href="trow-20231231.xsd#trow_RevenueAndServicesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_RevenueAndServicesTable_d0e00cb3-b194-4390-9d11-4c729d60e570" xlink:href="trow-20231231.xsd#trow_RevenueAndServicesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_trow_RevenueAndServicesLineItems_35595317-12cf-438d-8369-3a0145dc5586" xlink:to="loc_trow_RevenueAndServicesTable_d0e00cb3-b194-4390-9d11-4c729d60e570" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_b7df5809-a8fc-49d4-acd4-c56dc18d5234" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MajorCustomersAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_trow_RevenueAndServicesTable_d0e00cb3-b194-4390-9d11-4c729d60e570" xlink:to="loc_srt_MajorCustomersAxis_b7df5809-a8fc-49d4-acd4-c56dc18d5234" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_b7df5809-a8fc-49d4-acd4-c56dc18d5234_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_b7df5809-a8fc-49d4-acd4-c56dc18d5234" xlink:to="loc_srt_NameOfMajorCustomerDomain_b7df5809-a8fc-49d4-acd4-c56dc18d5234_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_8dc74714-6f30-47c2-8ae6-f1ff4240605e" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_b7df5809-a8fc-49d4-acd4-c56dc18d5234" xlink:to="loc_srt_NameOfMajorCustomerDomain_8dc74714-6f30-47c2-8ae6-f1ff4240605e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_InvestmentAdvisoryClientsMember_501fcd93-7d43-4423-b90e-441ea1e45260" xlink:href="trow-20231231.xsd#trow_InvestmentAdvisoryClientsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_8dc74714-6f30-47c2-8ae6-f1ff4240605e" xlink:to="loc_trow_InvestmentAdvisoryClientsMember_501fcd93-7d43-4423-b90e-441ea1e45260" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_659d6971-22bb-4e6a-94aa-6a7df0c644c2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_trow_RevenueAndServicesTable_d0e00cb3-b194-4390-9d11-4c729d60e570" xlink:to="loc_us-gaap_InvestmentTypeAxis_659d6971-22bb-4e6a-94aa-6a7df0c644c2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_659d6971-22bb-4e6a-94aa-6a7df0c644c2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis_659d6971-22bb-4e6a-94aa-6a7df0c644c2" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_659d6971-22bb-4e6a-94aa-6a7df0c644c2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_c492bfa0-296f-4094-9251-84dab6c65d4f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis_659d6971-22bb-4e6a-94aa-6a7df0c644c2" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_c492bfa0-296f-4094-9251-84dab6c65d4f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesMember_94d39616-af78-4b48-a2da-fd23da4bf816" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquitySecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_c492bfa0-296f-4094-9251-84dab6c65d4f" xlink:to="loc_us-gaap_EquitySecuritiesMember_94d39616-af78-4b48-a2da-fd23da4bf816" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_FixedIncomeIncludingMoneyMarketMember_fef42c75-13a7-4f27-b169-bb545161882c" xlink:href="trow-20231231.xsd#trow_FixedIncomeIncludingMoneyMarketMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_c492bfa0-296f-4094-9251-84dab6c65d4f" xlink:to="loc_trow_FixedIncomeIncludingMoneyMarketMember_fef42c75-13a7-4f27-b169-bb545161882c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_MultiAssetMember_85c78665-2f38-4722-be90-9fb6aa2354b7" xlink:href="trow-20231231.xsd#trow_MultiAssetMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_c492bfa0-296f-4094-9251-84dab6c65d4f" xlink:to="loc_trow_MultiAssetMember_85c78665-2f38-4722-be90-9fb6aa2354b7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_AlternativesInvestmentMember_e6ae60dd-57b0-4346-8796-32fd4d250966" xlink:href="trow-20231231.xsd#trow_AlternativesInvestmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_c492bfa0-296f-4094-9251-84dab6c65d4f" xlink:to="loc_trow_AlternativesInvestmentMember_e6ae60dd-57b0-4346-8796-32fd4d250966" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_d73b989a-05eb-4a6d-8d34-3d855b377166" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_trow_RevenueAndServicesTable_d0e00cb3-b194-4390-9d11-4c729d60e570" xlink:to="loc_srt_ProductOrServiceAxis_d73b989a-05eb-4a6d-8d34-3d855b377166" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_d73b989a-05eb-4a6d-8d34-3d855b377166_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_d73b989a-05eb-4a6d-8d34-3d855b377166" xlink:to="loc_srt_ProductsAndServicesDomain_d73b989a-05eb-4a6d-8d34-3d855b377166_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_4b39e11f-d2bb-423c-b788-c5e29142e4d8" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_d73b989a-05eb-4a6d-8d34-3d855b377166" xlink:to="loc_srt_ProductsAndServicesDomain_4b39e11f-d2bb-423c-b788-c5e29142e4d8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetManagement1Member_1e636276-3f7e-4d7e-9ad6-95325d2cbe66" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetManagement1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_4b39e11f-d2bb-423c-b788-c5e29142e4d8" xlink:to="loc_us-gaap_AssetManagement1Member_1e636276-3f7e-4d7e-9ad6-95325d2cbe66" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_CapitalAllocationBasedIncomeMember_1057dfde-898d-41dc-9194-9e20c04d936d" xlink:href="trow-20231231.xsd#trow_CapitalAllocationBasedIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_4b39e11f-d2bb-423c-b788-c5e29142e4d8" xlink:to="loc_trow_CapitalAllocationBasedIncomeMember_1057dfde-898d-41dc-9194-9e20c04d936d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_AdministrativeDistributionAndServicingMember_631b2645-900d-4f10-94ae-1d7324ad19b6" xlink:href="trow-20231231.xsd#trow_AdministrativeDistributionAndServicingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_4b39e11f-d2bb-423c-b788-c5e29142e4d8" xlink:to="loc_trow_AdministrativeDistributionAndServicingMember_631b2645-900d-4f10-94ae-1d7324ad19b6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_c7ee47e8-7105-434e-8e71-578288e1a549" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_trow_RevenueAndServicesTable_d0e00cb3-b194-4390-9d11-4c729d60e570" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_c7ee47e8-7105-434e-8e71-578288e1a549" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_c7ee47e8-7105-434e-8e71-578288e1a549_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_c7ee47e8-7105-434e-8e71-578288e1a549" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_c7ee47e8-7105-434e-8e71-578288e1a549_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_e38d2d50-acbf-4545-9eeb-f33db2e33994" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_c7ee47e8-7105-434e-8e71-578288e1a549" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_e38d2d50-acbf-4545-9eeb-f33db2e33994" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_AssetsUnderManagementMember_85179b58-915d-44e3-b72d-b4c9efab6463" xlink:href="trow-20231231.xsd#trow_AssetsUnderManagementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_e38d2d50-acbf-4545-9eeb-f33db2e33994" xlink:to="loc_trow_AssetsUnderManagementMember_85179b58-915d-44e3-b72d-b4c9efab6463" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_ae619a27-d963-4d2a-b72f-ef61314730f6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_trow_RevenueAndServicesLineItems_35595317-12cf-438d-8369-3a0145dc5586" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_ae619a27-d963-4d2a-b72f-ef61314730f6" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/INFORMATIONABOUTRECEIVABLESREVENUESANDSERVICESNarrativeDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#INFORMATIONABOUTRECEIVABLESREVENUESANDSERVICESNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/INFORMATIONABOUTRECEIVABLESREVENUESANDSERVICESNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskLineItems_65192762-dc69-4495-8ae2-2ca0c61b6202" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTable_767f9724-1880-41e5-ad4e-a2073b6b87c8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_65192762-dc69-4495-8ae2-2ca0c61b6202" xlink:to="loc_us-gaap_ConcentrationRiskTable_767f9724-1880-41e5-ad4e-a2073b6b87c8" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_f37ddc51-c7c3-4537-8ba6-c9b244a58202" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MajorCustomersAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_767f9724-1880-41e5-ad4e-a2073b6b87c8" xlink:to="loc_srt_MajorCustomersAxis_f37ddc51-c7c3-4537-8ba6-c9b244a58202" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_f37ddc51-c7c3-4537-8ba6-c9b244a58202_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_f37ddc51-c7c3-4537-8ba6-c9b244a58202" xlink:to="loc_srt_NameOfMajorCustomerDomain_f37ddc51-c7c3-4537-8ba6-c9b244a58202_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_6aaf7f7c-8ee4-4427-afaa-5c042e5f1b9d" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_f37ddc51-c7c3-4537-8ba6-c9b244a58202" xlink:to="loc_srt_NameOfMajorCustomerDomain_6aaf7f7c-8ee4-4427-afaa-5c042e5f1b9d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_SponsoredInvestmentPortfoliosMember_d94261a2-3433-488c-ad60-0028b4882651" xlink:href="trow-20231231.xsd#trow_SponsoredInvestmentPortfoliosMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_6aaf7f7c-8ee4-4427-afaa-5c042e5f1b9d" xlink:to="loc_trow_SponsoredInvestmentPortfoliosMember_d94261a2-3433-488c-ad60-0028b4882651" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_InvestmentAdvisoryClientsMember_91aa4a38-e620-4bc4-953c-912493b3df06" xlink:href="trow-20231231.xsd#trow_InvestmentAdvisoryClientsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_6aaf7f7c-8ee4-4427-afaa-5c042e5f1b9d" xlink:to="loc_trow_InvestmentAdvisoryClientsMember_91aa4a38-e620-4bc4-953c-912493b3df06" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_7cd34c6d-fa5f-4c27-8c17-de1791763bb8" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_767f9724-1880-41e5-ad4e-a2073b6b87c8" xlink:to="loc_srt_StatementGeographicalAxis_7cd34c6d-fa5f-4c27-8c17-de1791763bb8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_7cd34c6d-fa5f-4c27-8c17-de1791763bb8_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_7cd34c6d-fa5f-4c27-8c17-de1791763bb8" xlink:to="loc_srt_SegmentGeographicalDomain_7cd34c6d-fa5f-4c27-8c17-de1791763bb8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_cb1539d1-04d6-4443-a035-291b1c792fdc" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_7cd34c6d-fa5f-4c27-8c17-de1791763bb8" xlink:to="loc_srt_SegmentGeographicalDomain_cb1539d1-04d6-4443-a035-291b1c792fdc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonUsMember_0c04c3b6-a937-4211-96d4-0ce2bab143f3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NonUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_cb1539d1-04d6-4443-a035-291b1c792fdc" xlink:to="loc_us-gaap_NonUsMember_0c04c3b6-a937-4211-96d4-0ce2bab143f3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_64962e54-6c8d-4cbe-b54e-b377cf35d2f2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_767f9724-1880-41e5-ad4e-a2073b6b87c8" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_64962e54-6c8d-4cbe-b54e-b377cf35d2f2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_64962e54-6c8d-4cbe-b54e-b377cf35d2f2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_64962e54-6c8d-4cbe-b54e-b377cf35d2f2" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_64962e54-6c8d-4cbe-b54e-b377cf35d2f2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_fbd7b7cc-59ee-4108-a155-5da9df4828e5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_64962e54-6c8d-4cbe-b54e-b377cf35d2f2" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_fbd7b7cc-59ee-4108-a155-5da9df4828e5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_AssetsUnderManagementMember_12f3bb4c-cfa5-45d6-8001-c09ff78f37de" xlink:href="trow-20231231.xsd#trow_AssetsUnderManagementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_fbd7b7cc-59ee-4108-a155-5da9df4828e5" xlink:to="loc_trow_AssetsUnderManagementMember_12f3bb4c-cfa5-45d6-8001-c09ff78f37de" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_54a57e34-e011-4e0c-89b2-f935edd32dbf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_767f9724-1880-41e5-ad4e-a2073b6b87c8" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_54a57e34-e011-4e0c-89b2-f935edd32dbf" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_54a57e34-e011-4e0c-89b2-f935edd32dbf_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_54a57e34-e011-4e0c-89b2-f935edd32dbf" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_54a57e34-e011-4e0c-89b2-f935edd32dbf_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_32b61368-494b-4d47-9ed5-2322891a3ac8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_54a57e34-e011-4e0c-89b2-f935edd32dbf" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_32b61368-494b-4d47-9ed5-2322891a3ac8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeographicConcentrationRiskMember_e0527077-0c04-43d3-9f1e-bb5875558ccf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GeographicConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_32b61368-494b-4d47-9ed5-2322891a3ac8" xlink:to="loc_us-gaap_GeographicConcentrationRiskMember_e0527077-0c04-43d3-9f1e-bb5875558ccf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_5c13a67d-8d6e-438b-949b-598d9ec07929" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_65192762-dc69-4495-8ae2-2ca0c61b6202" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_5c13a67d-8d6e-438b-949b-598d9ec07929" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNet_0d7bfaad-4c01-4174-a36d-293e97d8ad87" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsReceivableNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_65192762-dc69-4495-8ae2-2ca0c61b6202" xlink:to="loc_us-gaap_AccountsReceivableNet_0d7bfaad-4c01-4174-a36d-293e97d8ad87" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_639d7477-5da7-4482-b9d6-b2775eb73e67" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_65192762-dc69-4495-8ae2-2ca0c61b6202" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_639d7477-5da7-4482-b9d6-b2775eb73e67" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/INVESTMENTSCarryingValueofInvestmentsDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#INVESTMENTSCarryingValueofInvestmentsDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/INVESTMENTSCarryingValueofInvestmentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_c4da093a-f431-4b57-9dac-31dfca4a6655" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable_1368997d-a28e-414f-ac05-2636d9c46437" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_c4da093a-f431-4b57-9dac-31dfca4a6655" xlink:to="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable_1368997d-a28e-414f-ac05-2636d9c46437" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_73b656b2-7fa7-4c27-b723-27b124554834" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable_1368997d-a28e-414f-ac05-2636d9c46437" xlink:to="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_73b656b2-7fa7-4c27-b723-27b124554834" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_73b656b2-7fa7-4c27-b723-27b124554834_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_73b656b2-7fa7-4c27-b723-27b124554834" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_73b656b2-7fa7-4c27-b723-27b124554834_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_400f3956-4e3a-496a-9a61-dbc3662cef90" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_73b656b2-7fa7-4c27-b723-27b124554834" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_400f3956-4e3a-496a-9a61-dbc3662cef90" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_SponsoredInvestmentPortfoliosDiscretionaryInvestmentsMember_93ec599e-cadc-472b-b404-1577368c0450" xlink:href="trow-20231231.xsd#trow_SponsoredInvestmentPortfoliosDiscretionaryInvestmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_400f3956-4e3a-496a-9a61-dbc3662cef90" xlink:to="loc_trow_SponsoredInvestmentPortfoliosDiscretionaryInvestmentsMember_93ec599e-cadc-472b-b404-1577368c0450" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_SponsoredInvestmentPortfoliosSeedCapitalMember_9c6d1178-d5ab-40b2-85bf-a407ad71478e" xlink:href="trow-20231231.xsd#trow_SponsoredInvestmentPortfoliosSeedCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_400f3956-4e3a-496a-9a61-dbc3662cef90" xlink:to="loc_trow_SponsoredInvestmentPortfoliosSeedCapitalMember_9c6d1178-d5ab-40b2-85bf-a407ad71478e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_SponsoredInvestmentPortfoliosSupplementalSavingsPlanLiabilityEconomicHedgesMember_d166fb32-98ab-40f3-9334-f810856944d9" xlink:href="trow-20231231.xsd#trow_SponsoredInvestmentPortfoliosSupplementalSavingsPlanLiabilityEconomicHedgesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_400f3956-4e3a-496a-9a61-dbc3662cef90" xlink:to="loc_trow_SponsoredInvestmentPortfoliosSupplementalSavingsPlanLiabilityEconomicHedgesMember_d166fb32-98ab-40f3-9334-f810856944d9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_InvestmentPartnershipsAndOtherInvestmentsMember_b50bec1c-7004-4c9b-bc8a-5f65b7827a39" xlink:href="trow-20231231.xsd#trow_InvestmentPartnershipsAndOtherInvestmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_400f3956-4e3a-496a-9a61-dbc3662cef90" xlink:to="loc_trow_InvestmentPartnershipsAndOtherInvestmentsMember_b50bec1c-7004-4c9b-bc8a-5f65b7827a39" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_UtiAssetManagementCompanyIndiaMember_88513596-2071-46f2-b7ce-a04e19296fc9" xlink:href="trow-20231231.xsd#trow_UtiAssetManagementCompanyIndiaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_400f3956-4e3a-496a-9a61-dbc3662cef90" xlink:to="loc_trow_UtiAssetManagementCompanyIndiaMember_88513596-2071-46f2-b7ce-a04e19296fc9" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_InvestmentsInAffiliatedPrivateInvestmentFundsCarriedInterestMember_96e088cb-1062-49cc-ab42-dd0137debab9" xlink:href="trow-20231231.xsd#trow_InvestmentsInAffiliatedPrivateInvestmentFundsCarriedInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_400f3956-4e3a-496a-9a61-dbc3662cef90" xlink:to="loc_trow_InvestmentsInAffiliatedPrivateInvestmentFundsCarriedInterestMember_96e088cb-1062-49cc-ab42-dd0137debab9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_InvestmentsInAffiliatedPrivateInvestmentFundsSeedCoInvestmentMember_94a9ab8e-e73f-4505-ab51-b1d11f71b0d9" xlink:href="trow-20231231.xsd#trow_InvestmentsInAffiliatedPrivateInvestmentFundsSeedCoInvestmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_400f3956-4e3a-496a-9a61-dbc3662cef90" xlink:to="loc_trow_InvestmentsInAffiliatedPrivateInvestmentFundsSeedCoInvestmentMember_94a9ab8e-e73f-4505-ab51-b1d11f71b0d9" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_InvestmentsInAffiliatedCollateralizedLoanObligationsMember_73d4b1b5-6826-45b8-9582-55b8a0bdede9" xlink:href="trow-20231231.xsd#trow_InvestmentsInAffiliatedCollateralizedLoanObligationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_400f3956-4e3a-496a-9a61-dbc3662cef90" xlink:to="loc_trow_InvestmentsInAffiliatedCollateralizedLoanObligationsMember_73d4b1b5-6826-45b8-9582-55b8a0bdede9" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_6c9099e7-a4f2-45d2-b2fe-5054a14c47fb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable_1368997d-a28e-414f-ac05-2636d9c46437" xlink:to="loc_us-gaap_FinancialInstrumentAxis_6c9099e7-a4f2-45d2-b2fe-5054a14c47fb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_6c9099e7-a4f2-45d2-b2fe-5054a14c47fb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_6c9099e7-a4f2-45d2-b2fe-5054a14c47fb" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_6c9099e7-a4f2-45d2-b2fe-5054a14c47fb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_c97a1ac4-ae28-4fe9-82fa-84bbe709da72" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_6c9099e7-a4f2-45d2-b2fe-5054a14c47fb" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_c97a1ac4-ae28-4fe9-82fa-84bbe709da72" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USTreasurySecuritiesMember_adb9ec51-4777-4fbc-a70c-0c3e92b60859" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_USTreasurySecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_c97a1ac4-ae28-4fe9-82fa-84bbe709da72" xlink:to="loc_us-gaap_USTreasurySecuritiesMember_adb9ec51-4777-4fbc-a70c-0c3e92b60859" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiCurrentAndNoncurrent_005ae6a3-28ef-4800-b5cf-6b14a499085e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquitySecuritiesFvNiCurrentAndNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_c4da093a-f431-4b57-9dac-31dfca4a6655" xlink:to="loc_us-gaap_EquitySecuritiesFvNiCurrentAndNoncurrent_005ae6a3-28ef-4800-b5cf-6b14a499085e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestments_e813137e-c008-43e4-91a2-48aa6c88b541" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityMethodInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_c4da093a-f431-4b57-9dac-31dfca4a6655" xlink:to="loc_us-gaap_EquityMethodInvestments_e813137e-c008-43e4-91a2-48aa6c88b541" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeExtensibleEnumeration_8a50822c-4cdb-4b60-8281-fc98712beae8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentTypeExtensibleEnumeration"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_c4da093a-f431-4b57-9dac-31dfca4a6655" xlink:to="loc_us-gaap_InvestmentTypeExtensibleEnumeration_8a50822c-4cdb-4b60-8281-fc98712beae8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecurities_900be1ce-37ec-4dca-84b2-ab264dcdbd9e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HeldToMaturitySecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_c4da093a-f431-4b57-9dac-31dfca4a6655" xlink:to="loc_us-gaap_HeldToMaturitySecurities_900be1ce-37ec-4dca-84b2-ab264dcdbd9e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Investments_f1cd5cc8-8d48-448f-ba3f-cfc4494ad698" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Investments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_c4da093a-f431-4b57-9dac-31dfca4a6655" xlink:to="loc_us-gaap_Investments_f1cd5cc8-8d48-448f-ba3f-cfc4494ad698" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/INVESTMENTSNarrativeDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#INVESTMENTSNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/INVESTMENTSNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_b74157d0-26d8-4c84-9dd1-9852e299484e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable_144417de-ee23-48f2-8684-ca569a13e453" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_b74157d0-26d8-4c84-9dd1-9852e299484e" xlink:to="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable_144417de-ee23-48f2-8684-ca569a13e453" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_862d68bf-ea38-47c2-bb22-6b017f3901d1" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable_144417de-ee23-48f2-8684-ca569a13e453" xlink:to="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_862d68bf-ea38-47c2-bb22-6b017f3901d1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_862d68bf-ea38-47c2-bb22-6b017f3901d1_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_862d68bf-ea38-47c2-bb22-6b017f3901d1" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_862d68bf-ea38-47c2-bb22-6b017f3901d1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_d70316f9-2aea-4027-be96-0cafa9e65b07" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_862d68bf-ea38-47c2-bb22-6b017f3901d1" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_d70316f9-2aea-4027-be96-0cafa9e65b07" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_SponsoredInvestmentPortfoliosSeedCapitalMember_b46c9caa-bda7-43ae-9e47-2863ee9b847a" xlink:href="trow-20231231.xsd#trow_SponsoredInvestmentPortfoliosSeedCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_d70316f9-2aea-4027-be96-0cafa9e65b07" xlink:to="loc_trow_SponsoredInvestmentPortfoliosSeedCapitalMember_b46c9caa-bda7-43ae-9e47-2863ee9b847a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_InvestmentsInAffiliatedCollateralizedLoanObligationsMember_a0402374-6821-4f80-ab3b-a0ce4347b7d1" xlink:href="trow-20231231.xsd#trow_InvestmentsInAffiliatedCollateralizedLoanObligationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_d70316f9-2aea-4027-be96-0cafa9e65b07" xlink:to="loc_trow_InvestmentsInAffiliatedCollateralizedLoanObligationsMember_a0402374-6821-4f80-ab3b-a0ce4347b7d1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_InvestmentsInEuropeanCollateralizedLoanObligationsMember_b83ffb3e-8486-4750-b1a6-b5d240a7a03b" xlink:href="trow-20231231.xsd#trow_InvestmentsInEuropeanCollateralizedLoanObligationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_d70316f9-2aea-4027-be96-0cafa9e65b07" xlink:to="loc_trow_InvestmentsInEuropeanCollateralizedLoanObligationsMember_b83ffb3e-8486-4750-b1a6-b5d240a7a03b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_9ee8d913-fd2a-4d32-819e-348267fd0ab8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BalanceSheetLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable_144417de-ee23-48f2-8684-ca569a13e453" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_9ee8d913-fd2a-4d32-819e-348267fd0ab8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_9ee8d913-fd2a-4d32-819e-348267fd0ab8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_9ee8d913-fd2a-4d32-819e-348267fd0ab8" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_9ee8d913-fd2a-4d32-819e-348267fd0ab8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_8b4030fb-931d-4019-982e-a7667ddd52fe" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_9ee8d913-fd2a-4d32-819e-348267fd0ab8" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_8b4030fb-931d-4019-982e-a7667ddd52fe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesMember_aa51e06a-345a-4aa8-80ab-39d1df0d22d6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_8b4030fb-931d-4019-982e-a7667ddd52fe" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesMember_aa51e06a-345a-4aa8-80ab-39d1df0d22d6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_11280d95-43a2-4cc6-8272-560b9794ce41" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableRateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable_144417de-ee23-48f2-8684-ca569a13e453" xlink:to="loc_us-gaap_VariableRateAxis_11280d95-43a2-4cc6-8272-560b9794ce41" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_11280d95-43a2-4cc6-8272-560b9794ce41_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_11280d95-43a2-4cc6-8272-560b9794ce41" xlink:to="loc_us-gaap_VariableRateDomain_11280d95-43a2-4cc6-8272-560b9794ce41_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_45431890-9b8f-4181-889b-f966ad30c7b3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_11280d95-43a2-4cc6-8272-560b9794ce41" xlink:to="loc_us-gaap_VariableRateDomain_45431890-9b8f-4181-889b-f966ad30c7b3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_EuroInterbankOfferRateEURIBORMember_a1415303-e035-491e-9ad1-f75cb8ae2a43" xlink:href="trow-20231231.xsd#trow_EuroInterbankOfferRateEURIBORMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_45431890-9b8f-4181-889b-f966ad30c7b3" xlink:to="loc_trow_EuroInterbankOfferRateEURIBORMember_a1415303-e035-491e-9ad1-f75cb8ae2a43" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_ef312970-4beb-4acf-8629-3e6eddfe5d78" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable_144417de-ee23-48f2-8684-ca569a13e453" xlink:to="loc_srt_RangeAxis_ef312970-4beb-4acf-8629-3e6eddfe5d78" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_ef312970-4beb-4acf-8629-3e6eddfe5d78_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_ef312970-4beb-4acf-8629-3e6eddfe5d78" xlink:to="loc_srt_RangeMember_ef312970-4beb-4acf-8629-3e6eddfe5d78_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_0126ee65-a3bf-4e19-b4ca-32eb104511ea" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_ef312970-4beb-4acf-8629-3e6eddfe5d78" xlink:to="loc_srt_RangeMember_0126ee65-a3bf-4e19-b4ca-32eb104511ea" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_b650ab34-3add-4fee-b5e3-5a3be995c2d7" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_0126ee65-a3bf-4e19-b4ca-32eb104511ea" xlink:to="loc_srt_MinimumMember_b650ab34-3add-4fee-b5e3-5a3be995c2d7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_a1d4e2b1-84ad-4465-b2e6-4d2632ab293a" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_0126ee65-a3bf-4e19-b4ca-32eb104511ea" xlink:to="loc_srt_MaximumMember_a1d4e2b1-84ad-4465-b2e6-4d2632ab293a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_7e22712e-f09c-4897-8389-86f153fb9cf5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable_144417de-ee23-48f2-8684-ca569a13e453" xlink:to="loc_us-gaap_FinancialInstrumentAxis_7e22712e-f09c-4897-8389-86f153fb9cf5" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_7e22712e-f09c-4897-8389-86f153fb9cf5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_7e22712e-f09c-4897-8389-86f153fb9cf5" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_7e22712e-f09c-4897-8389-86f153fb9cf5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_6e740c2d-31dc-4832-950d-bf46c52ec570" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_7e22712e-f09c-4897-8389-86f153fb9cf5" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_6e740c2d-31dc-4832-950d-bf46c52ec570" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_VerticalStripInvestmentMember_24f5a508-5a10-4834-92df-04f7bbcc5126" xlink:href="trow-20231231.xsd#trow_VerticalStripInvestmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_6e740c2d-31dc-4832-950d-bf46c52ec570" xlink:to="loc_trow_VerticalStripInvestmentMember_24f5a508-5a10-4834-92df-04f7bbcc5126" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss_624c45b8-94b8-49a7-a482-150c12177085" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_b74157d0-26d8-4c84-9dd1-9852e299484e" xlink:to="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss_624c45b8-94b8-49a7-a482-150c12177085" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeDividend_583d1792-269e-4b07-b54b-afa79717c3b7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentIncomeDividend"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_b74157d0-26d8-4c84-9dd1-9852e299484e" xlink:to="loc_us-gaap_InvestmentIncomeDividend_583d1792-269e-4b07-b54b-afa79717c3b7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_PercentOfCollateralizedLoanObligationsInvestedVerticalStrips_cc67848a-ead9-4217-809e-bb6ce3863962" xlink:href="trow-20231231.xsd#trow_PercentOfCollateralizedLoanObligationsInvestedVerticalStrips"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_b74157d0-26d8-4c84-9dd1-9852e299484e" xlink:to="loc_trow_PercentOfCollateralizedLoanObligationsInvestedVerticalStrips_cc67848a-ead9-4217-809e-bb6ce3863962" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_SecuredDebtDebtAssumed_241018dd-2b5b-4ce4-a408-cc042df0fe35" xlink:href="trow-20231231.xsd#trow_SecuredDebtDebtAssumed"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_b74157d0-26d8-4c84-9dd1-9852e299484e" xlink:to="loc_trow_SecuredDebtDebtAssumed_241018dd-2b5b-4ce4-a408-cc042df0fe35" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtRepurchaseAgreements_3d5df4e3-116b-488c-8814-786cbd2d8e40" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SecuredDebtRepurchaseAgreements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_b74157d0-26d8-4c84-9dd1-9852e299484e" xlink:to="loc_us-gaap_SecuredDebtRepurchaseAgreements_3d5df4e3-116b-488c-8814-786cbd2d8e40" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebt_6eb17c71-edc4-4f13-9caa-755f6a1fae11" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SecuredDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_b74157d0-26d8-4c84-9dd1-9852e299484e" xlink:to="loc_us-gaap_SecuredDebt_6eb17c71-edc4-4f13-9caa-755f6a1fae11" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentInterestRate_939a8cb0-34ac-40aa-a229-bf54268b716f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_b74157d0-26d8-4c84-9dd1-9852e299484e" xlink:to="loc_us-gaap_InvestmentInterestRate_939a8cb0-34ac-40aa-a229-bf54268b716f" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/INVESTMENTSDeconsolidationImpactsonFinancialStatementsDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#INVESTMENTSDeconsolidationImpactsonFinancialStatementsDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/INVESTMENTSDeconsolidationImpactsonFinancialStatementsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_094ea6c4-74d4-4cef-8520-7cad02e4e5fe" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable_ab654954-780a-4cc4-ae3e-c540fbbcf123" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_094ea6c4-74d4-4cef-8520-7cad02e4e5fe" xlink:to="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable_ab654954-780a-4cc4-ae3e-c540fbbcf123" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_04b8376e-5759-494a-b564-ed8b411d2bea" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BalanceSheetLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable_ab654954-780a-4cc4-ae3e-c540fbbcf123" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_04b8376e-5759-494a-b564-ed8b411d2bea" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_04b8376e-5759-494a-b564-ed8b411d2bea_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_04b8376e-5759-494a-b564-ed8b411d2bea" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_04b8376e-5759-494a-b564-ed8b411d2bea_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_c8dd5374-7ff8-4033-9b88-16ef6c81dd5c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_04b8376e-5759-494a-b564-ed8b411d2bea" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_c8dd5374-7ff8-4033-9b88-16ef6c81dd5c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsMember_c813e14a-fe6f-4db6-891e-a0e2c92bdab5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_c8dd5374-7ff8-4033-9b88-16ef6c81dd5c" xlink:to="loc_us-gaap_AssetsMember_c813e14a-fe6f-4db6-891e-a0e2c92bdab5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilityMember_a30412b3-c09c-40ec-81f0-eec42ace917d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_c8dd5374-7ff8-4033-9b88-16ef6c81dd5c" xlink:to="loc_us-gaap_LiabilityMember_a30412b3-c09c-40ec-81f0-eec42ace917d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_RedeemableNoncontrollingInterestMember_2032c2ec-f91b-4204-8efe-740909e55d6a" xlink:href="trow-20231231.xsd#trow_RedeemableNoncontrollingInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_c8dd5374-7ff8-4033-9b88-16ef6c81dd5c" xlink:to="loc_trow_RedeemableNoncontrollingInterestMember_2032c2ec-f91b-4204-8efe-740909e55d6a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_a5abbeba-5aef-46d2-acf2-f705cb94fe0a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable_ab654954-780a-4cc4-ae3e-c540fbbcf123" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_a5abbeba-5aef-46d2-acf2-f705cb94fe0a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_a5abbeba-5aef-46d2-acf2-f705cb94fe0a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_a5abbeba-5aef-46d2-acf2-f705cb94fe0a" xlink:to="loc_us-gaap_EquityComponentDomain_a5abbeba-5aef-46d2-acf2-f705cb94fe0a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_7f00336a-1fc1-4306-acfb-1714ab270046" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_a5abbeba-5aef-46d2-acf2-f705cb94fe0a" xlink:to="loc_us-gaap_EquityComponentDomain_7f00336a-1fc1-4306-acfb-1714ab270046" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedTranslationAdjustmentMember_8517c0f6-1e4d-48c9-ac49-d52c52283c4a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedTranslationAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_7f00336a-1fc1-4306-acfb-1714ab270046" xlink:to="loc_us-gaap_AccumulatedTranslationAdjustmentMember_8517c0f6-1e4d-48c9-ac49-d52c52283c4a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_d481ee28-a65d-416f-8f6a-808f7619927d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable_ab654954-780a-4cc4-ae3e-c540fbbcf123" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_d481ee28-a65d-416f-8f6a-808f7619927d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_d481ee28-a65d-416f-8f6a-808f7619927d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_d481ee28-a65d-416f-8f6a-808f7619927d" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_d481ee28-a65d-416f-8f6a-808f7619927d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_8fd87718-811d-4394-a613-1f047fa77f39" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_d481ee28-a65d-416f-8f6a-808f7619927d" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_8fd87718-811d-4394-a613-1f047fa77f39" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_6c2f6f3b-af14-4874-8680-2281e909799d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_8fd87718-811d-4394-a613-1f047fa77f39" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_6c2f6f3b-af14-4874-8680-2281e909799d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_DeconsolidationValue_f0bbb40c-7d1c-40f0-a331-2f7d55c0145a" xlink:href="trow-20231231.xsd#trow_DeconsolidationValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_094ea6c4-74d4-4cef-8520-7cad02e4e5fe" xlink:to="loc_trow_DeconsolidationValue_f0bbb40c-7d1c-40f0-a331-2f7d55c0145a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_10b0dc26-bb04-42c2-b78c-15fa70ea624e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_094ea6c4-74d4-4cef-8520-7cad02e4e5fe" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_10b0dc26-bb04-42c2-b78c-15fa70ea624e" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/INVESTMENTSVariableInterestEntitiesDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#INVESTMENTSVariableInterestEntitiesDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/INVESTMENTSVariableInterestEntitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityLineItems_dd08b748-aee3-49f7-bedd-4536aaca6c6a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableInterestEntityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable_58aad119-eabf-479f-9fc3-b9054e2e8ce2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfVariableInterestEntitiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_VariableInterestEntityLineItems_dd08b748-aee3-49f7-bedd-4536aaca6c6a" xlink:to="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable_58aad119-eabf-479f-9fc3-b9054e2e8ce2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis_41c703ba-e161-4d63-bb9d-afd5a4913c26" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable_58aad119-eabf-479f-9fc3-b9054e2e8ce2" xlink:to="loc_srt_ConsolidatedEntitiesAxis_41c703ba-e161-4d63-bb9d-afd5a4913c26" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_41c703ba-e161-4d63-bb9d-afd5a4913c26_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidatedEntitiesAxis_41c703ba-e161-4d63-bb9d-afd5a4913c26" xlink:to="loc_srt_ConsolidatedEntitiesDomain_41c703ba-e161-4d63-bb9d-afd5a4913c26_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_c76566a5-054b-4e3e-8b38-2cae35b84cbd" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidatedEntitiesAxis_41c703ba-e161-4d63-bb9d-afd5a4913c26" xlink:to="loc_srt_ConsolidatedEntitiesDomain_c76566a5-054b-4e3e-8b38-2cae35b84cbd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember_a5a748c9-8013-4846-b043-979943746e9f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_c76566a5-054b-4e3e-8b38-2cae35b84cbd" xlink:to="loc_us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember_a5a748c9-8013-4846-b043-979943746e9f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_VariableInterestEntityReportingEntityInvolvementMaximumLossExposureInvestmentCarryingValuesAmount_ce198f11-c9b1-4ce1-bd8e-8043526162cd" xlink:href="trow-20231231.xsd#trow_VariableInterestEntityReportingEntityInvolvementMaximumLossExposureInvestmentCarryingValuesAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems_dd08b748-aee3-49f7-bedd-4536aaca6c6a" xlink:to="loc_trow_VariableInterestEntityReportingEntityInvolvementMaximumLossExposureInvestmentCarryingValuesAmount_ce198f11-c9b1-4ce1-bd8e-8043526162cd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_VariableInterestEntityReportingEntityInvolvementMaximumLossExposureUnfundedCapitalCommitmentsAmount_9ef3b17f-1e00-423d-9bb9-9dd9f6306e87" xlink:href="trow-20231231.xsd#trow_VariableInterestEntityReportingEntityInvolvementMaximumLossExposureUnfundedCapitalCommitmentsAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems_dd08b748-aee3-49f7-bedd-4536aaca6c6a" xlink:to="loc_trow_VariableInterestEntityReportingEntityInvolvementMaximumLossExposureUnfundedCapitalCommitmentsAmount_9ef3b17f-1e00-423d-9bb9-9dd9f6306e87" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_VariableInterestEntityReportingEntityInvolvementMaximumLossExposureAccountsReceivableAmount_6921ff4b-17fe-41ad-bbb5-84b23aea234e" xlink:href="trow-20231231.xsd#trow_VariableInterestEntityReportingEntityInvolvementMaximumLossExposureAccountsReceivableAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems_dd08b748-aee3-49f7-bedd-4536aaca6c6a" xlink:to="loc_trow_VariableInterestEntityReportingEntityInvolvementMaximumLossExposureAccountsReceivableAmount_6921ff4b-17fe-41ad-bbb5-84b23aea234e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityEntityMaximumLossExposureAmount_0d2dbc26-c4e3-4e8e-a730-e8cf1bd14822" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableInterestEntityEntityMaximumLossExposureAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems_dd08b748-aee3-49f7-bedd-4536aaca6c6a" xlink:to="loc_us-gaap_VariableInterestEntityEntityMaximumLossExposureAmount_0d2dbc26-c4e3-4e8e-a730-e8cf1bd14822" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/INVESTMENTSTotalAssetsLiabilitiesandNoncontrollingInterestsDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#INVESTMENTSTotalAssetsLiabilitiesandNoncontrollingInterestsDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/INVESTMENTSTotalAssetsLiabilitiesandNoncontrollingInterestsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems_1faddd3c-15e4-4dda-8991-e4e5c2c1ae9f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSubsidiaryOrEquityMethodInvesteeTable_138f2cc6-c5d1-47cf-af1f-9f3355529df6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfSubsidiaryOrEquityMethodInvesteeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems_1faddd3c-15e4-4dda-8991-e4e5c2c1ae9f" xlink:to="loc_us-gaap_ScheduleOfSubsidiaryOrEquityMethodInvesteeTable_138f2cc6-c5d1-47cf-af1f-9f3355529df6" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis_955d2a1d-1947-407d-bbc2-5c548f23528e" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSubsidiaryOrEquityMethodInvesteeTable_138f2cc6-c5d1-47cf-af1f-9f3355529df6" xlink:to="loc_srt_ConsolidatedEntitiesAxis_955d2a1d-1947-407d-bbc2-5c548f23528e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_955d2a1d-1947-407d-bbc2-5c548f23528e_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidatedEntitiesAxis_955d2a1d-1947-407d-bbc2-5c548f23528e" xlink:to="loc_srt_ConsolidatedEntitiesDomain_955d2a1d-1947-407d-bbc2-5c548f23528e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_fba62569-0022-4c03-8dab-37417fed8c56" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidatedEntitiesAxis_955d2a1d-1947-407d-bbc2-5c548f23528e" xlink:to="loc_srt_ConsolidatedEntitiesDomain_fba62569-0022-4c03-8dab-37417fed8c56" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_697b7706-5d70-4450-b263-59d7c5f8c100" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableInterestEntityPrimaryBeneficiaryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_fba62569-0022-4c03-8dab-37417fed8c56" xlink:to="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_697b7706-5d70-4450-b263-59d7c5f8c100" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_05bae59c-4ee4-417d-beef-f8d506851217" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems_1faddd3c-15e4-4dda-8991-e4e5c2c1ae9f" xlink:to="loc_us-gaap_Assets_05bae59c-4ee4-417d-beef-f8d506851217" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_174003a2-6a68-41f9-8a60-6439c590200a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Liabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems_1faddd3c-15e4-4dda-8991-e4e5c2c1ae9f" xlink:to="loc_us-gaap_Liabilities_174003a2-6a68-41f9-8a60-6439c590200a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_e38ab02c-1c6d-4ca3-a90d-49b77fba52e6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MinorityInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems_1faddd3c-15e4-4dda-8991-e4e5c2c1ae9f" xlink:to="loc_us-gaap_MinorityInterest_e38ab02c-1c6d-4ca3-a90d-49b77fba52e6" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/FAIRVALUEMEASUREMENTSSummaryofInvestmentsDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#FAIRVALUEMEASUREMENTSSummaryofInvestmentsDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/FAIRVALUEMEASUREMENTSSummaryofInvestmentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_b89336f4-8cbf-42b6-b8b6-a7241afb7d88" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_5d593c3f-cb94-4d16-a438-97f412ed64bb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_b89336f4-8cbf-42b6-b8b6-a7241afb7d88" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_5d593c3f-cb94-4d16-a438-97f412ed64bb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_a708e4a2-1270-4a19-bb21-9a19e20f88ef" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_5d593c3f-cb94-4d16-a438-97f412ed64bb" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_a708e4a2-1270-4a19-bb21-9a19e20f88ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_a708e4a2-1270-4a19-bb21-9a19e20f88ef_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_a708e4a2-1270-4a19-bb21-9a19e20f88ef" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_a708e4a2-1270-4a19-bb21-9a19e20f88ef_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_28322b9d-3c1f-409c-90a6-8ace3eb28e0c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_a708e4a2-1270-4a19-bb21-9a19e20f88ef" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_28322b9d-3c1f-409c-90a6-8ace3eb28e0c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_727068d0-bad6-4f5b-94c2-0a04f07f1b4c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_28322b9d-3c1f-409c-90a6-8ace3eb28e0c" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_727068d0-bad6-4f5b-94c2-0a04f07f1b4c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_ab393725-d427-4ffd-bce3-295efce36d14" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_5d593c3f-cb94-4d16-a438-97f412ed64bb" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_ab393725-d427-4ffd-bce3-295efce36d14" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_ab393725-d427-4ffd-bce3-295efce36d14_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_ab393725-d427-4ffd-bce3-295efce36d14" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_ab393725-d427-4ffd-bce3-295efce36d14_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_1a4a6b67-2538-48d0-9a5a-e20d0d308c34" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_ab393725-d427-4ffd-bce3-295efce36d14" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_1a4a6b67-2538-48d0-9a5a-e20d0d308c34" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_275bfe13-4953-4d86-b27f-f8eb5dd200ea" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_1a4a6b67-2538-48d0-9a5a-e20d0d308c34" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_275bfe13-4953-4d86-b27f-f8eb5dd200ea" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_fd4893b2-805e-48f4-98f4-685d8e9e39a8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_1a4a6b67-2538-48d0-9a5a-e20d0d308c34" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_fd4893b2-805e-48f4-98f4-685d8e9e39a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_0e417919-8311-490e-befd-98fce0ed1b94" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_1a4a6b67-2538-48d0-9a5a-e20d0d308c34" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_0e417919-8311-490e-befd-98fce0ed1b94" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember_92d420a3-c111-4182-a152-d98711c2130d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_1a4a6b67-2538-48d0-9a5a-e20d0d308c34" xlink:to="loc_us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember_92d420a3-c111-4182-a152-d98711c2130d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_0762af9f-aea4-47f2-8acc-44022e9e980a" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_5d593c3f-cb94-4d16-a438-97f412ed64bb" xlink:to="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_0762af9f-aea4-47f2-8acc-44022e9e980a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_0762af9f-aea4-47f2-8acc-44022e9e980a_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_0762af9f-aea4-47f2-8acc-44022e9e980a" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_0762af9f-aea4-47f2-8acc-44022e9e980a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_fcf688dd-41db-4499-a80c-f579142d85ec" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_0762af9f-aea4-47f2-8acc-44022e9e980a" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_fcf688dd-41db-4499-a80c-f579142d85ec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_SponsoredInvestmentPortfoliosDiscretionaryInvestmentsMember_924315f2-02d4-4284-8f50-b1878d780786" xlink:href="trow-20231231.xsd#trow_SponsoredInvestmentPortfoliosDiscretionaryInvestmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_fcf688dd-41db-4499-a80c-f579142d85ec" xlink:to="loc_trow_SponsoredInvestmentPortfoliosDiscretionaryInvestmentsMember_924315f2-02d4-4284-8f50-b1878d780786" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_SponsoredInvestmentPortfoliosSeedCapitalMember_d4f75c79-55e0-41e0-ab8d-8dfed8ef0a84" xlink:href="trow-20231231.xsd#trow_SponsoredInvestmentPortfoliosSeedCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_fcf688dd-41db-4499-a80c-f579142d85ec" xlink:to="loc_trow_SponsoredInvestmentPortfoliosSeedCapitalMember_d4f75c79-55e0-41e0-ab8d-8dfed8ef0a84" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_SponsoredInvestmentPortfoliosSupplementalSavingsPlanLiabilityEconomicHedgesMember_ad3b1536-4776-4552-b7bb-eca29f6a1754" xlink:href="trow-20231231.xsd#trow_SponsoredInvestmentPortfoliosSupplementalSavingsPlanLiabilityEconomicHedgesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_fcf688dd-41db-4499-a80c-f579142d85ec" xlink:to="loc_trow_SponsoredInvestmentPortfoliosSupplementalSavingsPlanLiabilityEconomicHedgesMember_ad3b1536-4776-4552-b7bb-eca29f6a1754" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_788b7d23-f428-4b4b-aafa-19117541016b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_b89336f4-8cbf-42b6-b8b6-a7241afb7d88" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_788b7d23-f428-4b4b-aafa-19117541016b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNi_2c466e3a-9db3-44c5-80ff-7b62d46b0137" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquitySecuritiesFvNi"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_b89336f4-8cbf-42b6-b8b6-a7241afb7d88" xlink:to="loc_us-gaap_EquitySecuritiesFvNi_2c466e3a-9db3-44c5-80ff-7b62d46b0137" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherInvestments_cff580c3-ced1-4bf2-a46f-35a1c6a8870e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_b89336f4-8cbf-42b6-b8b6-a7241afb7d88" xlink:to="loc_us-gaap_OtherInvestments_cff580c3-ced1-4bf2-a46f-35a1c6a8870e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesFairValueDisclosure_b3e0ca2a-a33e-4c59-9f36-2a2589450c9f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_b89336f4-8cbf-42b6-b8b6-a7241afb7d88" xlink:to="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesFairValueDisclosure_b3e0ca2a-a33e-4c59-9f36-2a2589450c9f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_2a30e915-9cba-4bc0-a85b-261242786bc3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_b89336f4-8cbf-42b6-b8b6-a7241afb7d88" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_2a30e915-9cba-4bc0-a85b-261242786bc3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_89c4b196-c598-4f39-aa7a-05100a4c3599" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationContingentConsiderationLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_b89336f4-8cbf-42b6-b8b6-a7241afb7d88" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_89c4b196-c598-4f39-aa7a-05100a4c3599" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/FAIRVALUEMEASUREMENTSNarrativeDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#FAIRVALUEMEASUREMENTSNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/FAIRVALUEMEASUREMENTSNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_9589704d-912f-4440-8c6c-79490492572e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_b5115100-855b-4172-9e9a-7df6cd37a26a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_9589704d-912f-4440-8c6c-79490492572e" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_b5115100-855b-4172-9e9a-7df6cd37a26a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_fcdd5a70-6c26-4e20-a991-8b651a7575cf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_b5115100-855b-4172-9e9a-7df6cd37a26a" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_fcdd5a70-6c26-4e20-a991-8b651a7575cf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_fcdd5a70-6c26-4e20-a991-8b651a7575cf_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_fcdd5a70-6c26-4e20-a991-8b651a7575cf" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_fcdd5a70-6c26-4e20-a991-8b651a7575cf_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_fcb8f0f7-a8b9-41e0-82be-c9b132667b16" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_fcdd5a70-6c26-4e20-a991-8b651a7575cf" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_fcb8f0f7-a8b9-41e0-82be-c9b132667b16" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember_bec5b86a-d272-45c6-bc4a-d5d64578e129" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_fcb8f0f7-a8b9-41e0-82be-c9b132667b16" xlink:to="loc_us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember_bec5b86a-d272-45c6-bc4a-d5d64578e129" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_7b325336-5db7-44fd-a9cf-ee342bdb2fbb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_b5115100-855b-4172-9e9a-7df6cd37a26a" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_7b325336-5db7-44fd-a9cf-ee342bdb2fbb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_7b325336-5db7-44fd-a9cf-ee342bdb2fbb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_7b325336-5db7-44fd-a9cf-ee342bdb2fbb" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_7b325336-5db7-44fd-a9cf-ee342bdb2fbb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_b5be02c8-8054-4ae5-9551-3e7e6a1a3d36" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_7b325336-5db7-44fd-a9cf-ee342bdb2fbb" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_b5be02c8-8054-4ae5-9551-3e7e6a1a3d36" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_OHAAcquisitionMember_28545fe0-2695-407a-afb4-f7667daeca2b" xlink:href="trow-20231231.xsd#trow_OHAAcquisitionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_b5be02c8-8054-4ae5-9551-3e7e6a1a3d36" xlink:to="loc_trow_OHAAcquisitionMember_28545fe0-2695-407a-afb4-f7667daeca2b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNi_6f2a4467-9c43-46fb-8a21-0eacfaceaedf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquitySecuritiesFvNi"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_9589704d-912f-4440-8c6c-79490492572e" xlink:to="loc_us-gaap_EquitySecuritiesFvNi_6f2a4467-9c43-46fb-8a21-0eacfaceaedf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh_a2b522c6-1b2e-4113-8a92-c86fc7af0bfc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_9589704d-912f-4440-8c6c-79490492572e" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh_a2b522c6-1b2e-4113-8a92-c86fc7af0bfc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_BusinessCombinationContingentConsiderationExtendedEarnoutPaymentPeriod_3bcaec0d-618b-4036-a212-da2e65343543" xlink:href="trow-20231231.xsd#trow_BusinessCombinationContingentConsiderationExtendedEarnoutPaymentPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_9589704d-912f-4440-8c6c-79490492572e" xlink:to="loc_trow_BusinessCombinationContingentConsiderationExtendedEarnoutPaymentPeriod_3bcaec0d-618b-4036-a212-da2e65343543" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_BusinessCombinationEarnoutPayoutIf75PercentThresholdNotMet_ee5c55b4-7a80-4c3e-988d-138b3e18dc26" xlink:href="trow-20231231.xsd#trow_BusinessCombinationEarnoutPayoutIf75PercentThresholdNotMet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_9589704d-912f-4440-8c6c-79490492572e" xlink:to="loc_trow_BusinessCombinationEarnoutPayoutIf75PercentThresholdNotMet_ee5c55b4-7a80-4c3e-988d-138b3e18dc26" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_BusinessCombinationEarnoutPercentageThreshold_5c77ed46-7a16-4708-adbf-01aaa7178b02" xlink:href="trow-20231231.xsd#trow_BusinessCombinationEarnoutPercentageThreshold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_9589704d-912f-4440-8c6c-79490492572e" xlink:to="loc_trow_BusinessCombinationEarnoutPercentageThreshold_5c77ed46-7a16-4708-adbf-01aaa7178b02" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_BusinessCombinationEarnoutPercentageSecondThreshold_d0fbc5a1-d172-40f5-91e0-ec0b1c77d027" xlink:href="trow-20231231.xsd#trow_BusinessCombinationEarnoutPercentageSecondThreshold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_9589704d-912f-4440-8c6c-79490492572e" xlink:to="loc_trow_BusinessCombinationEarnoutPercentageSecondThreshold_d0fbc5a1-d172-40f5-91e0-ec0b1c77d027" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/FAIRVALUEMEASUREMENTSScheduleofChangeinContingentConsiderationLiabilityDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#FAIRVALUEMEASUREMENTSScheduleofChangeinContingentConsiderationLiabilityDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/FAIRVALUEMEASUREMENTSScheduleofChangeinContingentConsiderationLiabilityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_6ee9d134-4216-4409-a0bf-1fa9d4ffb771" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_bb729dea-10bb-45c4-859a-c78718ef9ac4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_6ee9d134-4216-4409-a0bf-1fa9d4ffb771" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_bb729dea-10bb-45c4-859a-c78718ef9ac4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_d8f543fd-73ae-45a9-8562-6eeb4aab508a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_bb729dea-10bb-45c4-859a-c78718ef9ac4" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_d8f543fd-73ae-45a9-8562-6eeb4aab508a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_d8f543fd-73ae-45a9-8562-6eeb4aab508a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_d8f543fd-73ae-45a9-8562-6eeb4aab508a" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_d8f543fd-73ae-45a9-8562-6eeb4aab508a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_2bd76e56-f770-488a-82c9-bf05141c652e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_d8f543fd-73ae-45a9-8562-6eeb4aab508a" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_2bd76e56-f770-488a-82c9-bf05141c652e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_cd7ff11c-561b-4a15-9d3a-5242b0238655" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_2bd76e56-f770-488a-82c9-bf05141c652e" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_cd7ff11c-561b-4a15-9d3a-5242b0238655" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_09d1f3a7-12b8-4ba2-8657-c84432585914" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_bb729dea-10bb-45c4-859a-c78718ef9ac4" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_09d1f3a7-12b8-4ba2-8657-c84432585914" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_09d1f3a7-12b8-4ba2-8657-c84432585914_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_09d1f3a7-12b8-4ba2-8657-c84432585914" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_09d1f3a7-12b8-4ba2-8657-c84432585914_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_5ee62ba1-ec46-47ad-8c42-c40e3e720071" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_09d1f3a7-12b8-4ba2-8657-c84432585914" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_5ee62ba1-ec46-47ad-8c42-c40e3e720071" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_642d34e4-8414-4d9d-9ed5-128a663a7f4a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_5ee62ba1-ec46-47ad-8c42-c40e3e720071" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_642d34e4-8414-4d9d-9ed5-128a663a7f4a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_b96ed9c4-59f2-40a0-ae05-024cf7d2f6b0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_6ee9d134-4216-4409-a0bf-1fa9d4ffb771" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_b96ed9c4-59f2-40a0-ae05-024cf7d2f6b0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_07522464-87c9-4c04-9af1-3becc0341054" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_b96ed9c4-59f2-40a0-ae05-024cf7d2f6b0" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_07522464-87c9-4c04-9af1-3becc0341054" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome_b973392e-27ad-45e6-bd57-8f60f4641552" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_b96ed9c4-59f2-40a0-ae05-024cf7d2f6b0" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome_b973392e-27ad-45e6-bd57-8f60f4641552" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings_246e7212-f9c8-430e-800d-b2a84ca56b5f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_b96ed9c4-59f2-40a0-ae05-024cf7d2f6b0" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings_246e7212-f9c8-430e-800d-b2a84ca56b5f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_8cff8271-2409-4257-bb54-be2c3e46047d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueRecurringBasisUnobservableInputReconciliationLiabilityGainLossStatementOfOtherComprehensiveIncomeExtensibleList_98f8d4a2-d61c-4f5b-972f-61d2dbf53d09" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueRecurringBasisUnobservableInputReconciliationLiabilityGainLossStatementOfOtherComprehensiveIncomeExtensibleList"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_6ee9d134-4216-4409-a0bf-1fa9d4ffb771" xlink:to="loc_us-gaap_FairValueRecurringBasisUnobservableInputReconciliationLiabilityGainLossStatementOfOtherComprehensiveIncomeExtensibleList_98f8d4a2-d61c-4f5b-972f-61d2dbf53d09" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/CONSOLIDATEDSPONSOREDINVESTMENTPRODUCTSNetAssetsDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#CONSOLIDATEDSPONSOREDINVESTMENTPRODUCTSNetAssetsDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/CONSOLIDATEDSPONSOREDINVESTMENTPRODUCTSNetAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_srt_CondensedBalanceSheetStatementsCaptionsLineItems_89cd3a7e-5954-4857-a515-ddae4f52ce9f" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_CondensedBalanceSheetStatementsCaptionsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CondensedBalanceSheetStatementTable_e299e572-c435-4d8f-9a3a-1f372325e76f" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_CondensedBalanceSheetStatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_srt_CondensedBalanceSheetStatementsCaptionsLineItems_89cd3a7e-5954-4857-a515-ddae4f52ce9f" xlink:to="loc_srt_CondensedBalanceSheetStatementTable_e299e572-c435-4d8f-9a3a-1f372325e76f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_becbdf3d-e1f7-434f-9d36-c96217cfd776" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_srt_CondensedBalanceSheetStatementTable_e299e572-c435-4d8f-9a3a-1f372325e76f" xlink:to="loc_srt_ConsolidationItemsAxis_becbdf3d-e1f7-434f-9d36-c96217cfd776" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_becbdf3d-e1f7-434f-9d36-c96217cfd776_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_becbdf3d-e1f7-434f-9d36-c96217cfd776" xlink:to="loc_srt_ConsolidationItemsDomain_becbdf3d-e1f7-434f-9d36-c96217cfd776_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_ba22c293-4f4b-4d0f-b889-81e863b0b8df" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_becbdf3d-e1f7-434f-9d36-c96217cfd776" xlink:to="loc_srt_ConsolidationItemsDomain_ba22c293-4f4b-4d0f-b889-81e863b0b8df" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ReportableLegalEntitiesMember_32c93e9a-db26-4417-86e4-e628a09bbc6e" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ReportableLegalEntitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_ba22c293-4f4b-4d0f-b889-81e863b0b8df" xlink:to="loc_srt_ReportableLegalEntitiesMember_32c93e9a-db26-4417-86e4-e628a09bbc6e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis_43abf8c1-40b4-492b-a27a-abb1927a9058" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_srt_CondensedBalanceSheetStatementTable_e299e572-c435-4d8f-9a3a-1f372325e76f" xlink:to="loc_srt_ConsolidatedEntitiesAxis_43abf8c1-40b4-492b-a27a-abb1927a9058" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_43abf8c1-40b4-492b-a27a-abb1927a9058_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidatedEntitiesAxis_43abf8c1-40b4-492b-a27a-abb1927a9058" xlink:to="loc_srt_ConsolidatedEntitiesDomain_43abf8c1-40b4-492b-a27a-abb1927a9058_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_54c58622-e9a5-4df1-bd85-a88616518b1f" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidatedEntitiesAxis_43abf8c1-40b4-492b-a27a-abb1927a9058" xlink:to="loc_srt_ConsolidatedEntitiesDomain_54c58622-e9a5-4df1-bd85-a88616518b1f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_ConsolidatedInvestmentPortfoliosMember_2a5768aa-f26a-4fb9-80f4-76d698bf8df2" xlink:href="trow-20231231.xsd#trow_ConsolidatedInvestmentPortfoliosMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_54c58622-e9a5-4df1-bd85-a88616518b1f" xlink:to="loc_trow_ConsolidatedInvestmentPortfoliosMember_2a5768aa-f26a-4fb9-80f4-76d698bf8df2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_VotingInterestEntitiesMember_f9309988-91f5-4736-bf12-b28669eb65bf" xlink:href="trow-20231231.xsd#trow_VotingInterestEntitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_trow_ConsolidatedInvestmentPortfoliosMember_2a5768aa-f26a-4fb9-80f4-76d698bf8df2" xlink:to="loc_trow_VotingInterestEntitiesMember_f9309988-91f5-4736-bf12-b28669eb65bf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_33b5dba4-3562-4607-abe3-a1a75ca4964d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableInterestEntityPrimaryBeneficiaryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_trow_ConsolidatedInvestmentPortfoliosMember_2a5768aa-f26a-4fb9-80f4-76d698bf8df2" xlink:to="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_33b5dba4-3562-4607-abe3-a1a75ca4964d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_23b8f7cd-461b-4b80-9801-6891449a8c8e" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MajorCustomersAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_srt_CondensedBalanceSheetStatementTable_e299e572-c435-4d8f-9a3a-1f372325e76f" xlink:to="loc_srt_MajorCustomersAxis_23b8f7cd-461b-4b80-9801-6891449a8c8e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_23b8f7cd-461b-4b80-9801-6891449a8c8e_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_23b8f7cd-461b-4b80-9801-6891449a8c8e" xlink:to="loc_srt_NameOfMajorCustomerDomain_23b8f7cd-461b-4b80-9801-6891449a8c8e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_647aa038-6862-4cad-afbc-13b07b2b5225" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_23b8f7cd-461b-4b80-9801-6891449a8c8e" xlink:to="loc_srt_NameOfMajorCustomerDomain_647aa038-6862-4cad-afbc-13b07b2b5225" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_SponsoredInvestmentPortfoliosMember_8cf3ce0c-0fdd-439b-b16d-7fb78efa7567" xlink:href="trow-20231231.xsd#trow_SponsoredInvestmentPortfoliosMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_647aa038-6862-4cad-afbc-13b07b2b5225" xlink:to="loc_trow_SponsoredInvestmentPortfoliosMember_8cf3ce0c-0fdd-439b-b16d-7fb78efa7567" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAxis_d3c673af-c27d-422e-ad22-d007fbf6cd69" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_srt_CondensedBalanceSheetStatementTable_e299e572-c435-4d8f-9a3a-1f372325e76f" xlink:to="loc_us-gaap_CashAndCashEquivalentsAxis_d3c673af-c27d-422e-ad22-d007fbf6cd69" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_d3c673af-c27d-422e-ad22-d007fbf6cd69_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_d3c673af-c27d-422e-ad22-d007fbf6cd69" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_d3c673af-c27d-422e-ad22-d007fbf6cd69_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_b27e2b06-7165-488f-9ef1-e65a9d86eee6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_d3c673af-c27d-422e-ad22-d007fbf6cd69" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_b27e2b06-7165-488f-9ef1-e65a9d86eee6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsMember_a9f7f5c7-75bd-4114-a62a-514e97298114" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MoneyMarketFundsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_b27e2b06-7165-488f-9ef1-e65a9d86eee6" xlink:to="loc_us-gaap_MoneyMarketFundsMember_a9f7f5c7-75bd-4114-a62a-514e97298114" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_7e906f90-b4eb-408d-a4cc-c8f06f50e0f5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedBalanceSheetStatementsCaptionsLineItems_89cd3a7e-5954-4857-a515-ddae4f52ce9f" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_7e906f90-b4eb-408d-a4cc-c8f06f50e0f5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Investments_b08dfaa4-d2e9-4454-8f30-581746f153ce" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Investments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedBalanceSheetStatementsCaptionsLineItems_89cd3a7e-5954-4857-a515-ddae4f52ce9f" xlink:to="loc_us-gaap_Investments_b08dfaa4-d2e9-4454-8f30-581746f153ce" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssets_c64c8942-68cf-4e49-805a-68ea0f7bd344" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedBalanceSheetStatementsCaptionsLineItems_89cd3a7e-5954-4857-a515-ddae4f52ce9f" xlink:to="loc_us-gaap_OtherAssets_c64c8942-68cf-4e49-805a-68ea0f7bd344" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_d31d8d98-b32d-4334-82de-54038f86ec65" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedBalanceSheetStatementsCaptionsLineItems_89cd3a7e-5954-4857-a515-ddae4f52ce9f" xlink:to="loc_us-gaap_Assets_d31d8d98-b32d-4334-82de-54038f86ec65" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_576a07ac-0876-4714-8351-f50dc0cbfc6f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Liabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedBalanceSheetStatementsCaptionsLineItems_89cd3a7e-5954-4857-a515-ddae4f52ce9f" xlink:to="loc_us-gaap_Liabilities_576a07ac-0876-4714-8351-f50dc0cbfc6f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsNet_2d993a3b-24f8-41a5-8ccd-80e43ebd045a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedBalanceSheetStatementsCaptionsLineItems_89cd3a7e-5954-4857-a515-ddae4f52ce9f" xlink:to="loc_us-gaap_AssetsNet_2d993a3b-24f8-41a5-8ccd-80e43ebd045a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_InvestmentSponsoredInvestmentPortfoliosAttributabletoParent_cfc86123-9211-42c5-b7f7-a517fcf4a053" xlink:href="trow-20231231.xsd#trow_InvestmentSponsoredInvestmentPortfoliosAttributabletoParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedBalanceSheetStatementsCaptionsLineItems_89cd3a7e-5954-4857-a515-ddae4f52ce9f" xlink:to="loc_trow_InvestmentSponsoredInvestmentPortfoliosAttributabletoParent_cfc86123-9211-42c5-b7f7-a517fcf4a053" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_0cb84f9b-3f3a-4113-a76a-098a83f1d59e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedBalanceSheetStatementsCaptionsLineItems_89cd3a7e-5954-4857-a515-ddae4f52ce9f" xlink:to="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_0cb84f9b-3f3a-4113-a76a-098a83f1d59e" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/CONSOLIDATEDSPONSOREDINVESTMENTPRODUCTSOperatingResultsDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#CONSOLIDATEDSPONSOREDINVESTMENTPRODUCTSOperatingResultsDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/CONSOLIDATEDSPONSOREDINVESTMENTPRODUCTSOperatingResultsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_srt_CondensedIncomeStatementsCaptionsLineItems_f75eaae2-5dc7-4ccb-a523-c01e7d05b04d" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_CondensedIncomeStatementsCaptionsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CondensedIncomeStatementTable_e36f78d5-5471-4456-a74e-2d36c1888b1f" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_CondensedIncomeStatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_srt_CondensedIncomeStatementsCaptionsLineItems_f75eaae2-5dc7-4ccb-a523-c01e7d05b04d" xlink:to="loc_srt_CondensedIncomeStatementTable_e36f78d5-5471-4456-a74e-2d36c1888b1f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis_4616014a-a712-45f5-a4e8-6663142a06be" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_srt_CondensedIncomeStatementTable_e36f78d5-5471-4456-a74e-2d36c1888b1f" xlink:to="loc_srt_ConsolidatedEntitiesAxis_4616014a-a712-45f5-a4e8-6663142a06be" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_4616014a-a712-45f5-a4e8-6663142a06be_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidatedEntitiesAxis_4616014a-a712-45f5-a4e8-6663142a06be" xlink:to="loc_srt_ConsolidatedEntitiesDomain_4616014a-a712-45f5-a4e8-6663142a06be_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_ab928985-a53d-4cab-8358-f3523517c658" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidatedEntitiesAxis_4616014a-a712-45f5-a4e8-6663142a06be" xlink:to="loc_srt_ConsolidatedEntitiesDomain_ab928985-a53d-4cab-8358-f3523517c658" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_ConsolidatedInvestmentPortfoliosMember_2428f573-5cfe-428f-9e0a-de471632ec71" xlink:href="trow-20231231.xsd#trow_ConsolidatedInvestmentPortfoliosMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_ab928985-a53d-4cab-8358-f3523517c658" xlink:to="loc_trow_ConsolidatedInvestmentPortfoliosMember_2428f573-5cfe-428f-9e0a-de471632ec71" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_VotingInterestEntitiesMember_6ef01ccd-d0dd-47ac-8136-f72aa8e85fa8" xlink:href="trow-20231231.xsd#trow_VotingInterestEntitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_trow_ConsolidatedInvestmentPortfoliosMember_2428f573-5cfe-428f-9e0a-de471632ec71" xlink:to="loc_trow_VotingInterestEntitiesMember_6ef01ccd-d0dd-47ac-8136-f72aa8e85fa8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_793b69aa-6e11-47f2-a22c-fe3d28ec33e6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableInterestEntityPrimaryBeneficiaryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_trow_ConsolidatedInvestmentPortfoliosMember_2428f573-5cfe-428f-9e0a-de471632ec71" xlink:to="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_793b69aa-6e11-47f2-a22c-fe3d28ec33e6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_1379fb6b-b834-4192-8b42-d3c46c79c53b" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_srt_CondensedIncomeStatementTable_e36f78d5-5471-4456-a74e-2d36c1888b1f" xlink:to="loc_srt_ConsolidationItemsAxis_1379fb6b-b834-4192-8b42-d3c46c79c53b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_1379fb6b-b834-4192-8b42-d3c46c79c53b_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_1379fb6b-b834-4192-8b42-d3c46c79c53b" xlink:to="loc_srt_ConsolidationItemsDomain_1379fb6b-b834-4192-8b42-d3c46c79c53b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_c65e235d-d242-4926-aed9-c79d409291d8" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_1379fb6b-b834-4192-8b42-d3c46c79c53b" xlink:to="loc_srt_ConsolidationItemsDomain_c65e235d-d242-4926-aed9-c79d409291d8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ReportableLegalEntitiesMember_0b98274c-64c0-498d-8e4d-eb841c795bfd" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ReportableLegalEntitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_c65e235d-d242-4926-aed9-c79d409291d8" xlink:to="loc_srt_ReportableLegalEntitiesMember_0b98274c-64c0-498d-8e4d-eb841c795bfd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_74ac4720-cf22-48ae-9266-9642c6c275fe" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedIncomeStatementsCaptionsLineItems_f75eaae2-5dc7-4ccb-a523-c01e7d05b04d" xlink:to="loc_us-gaap_OperatingExpenses_74ac4720-cf22-48ae-9266-9642c6c275fe" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeNet_5ea53a05-6f16-4a9a-9e7a-6f6ef54ae659" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentIncomeNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedIncomeStatementsCaptionsLineItems_f75eaae2-5dc7-4ccb-a523-c01e7d05b04d" xlink:to="loc_us-gaap_InvestmentIncomeNet_5ea53a05-6f16-4a9a-9e7a-6f6ef54ae659" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_ea6b9980-6c65-4b3c-ac5e-8f578454985d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedIncomeStatementsCaptionsLineItems_f75eaae2-5dc7-4ccb-a523-c01e7d05b04d" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_ea6b9980-6c65-4b3c-ac5e-8f578454985d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_IncomeLossfromContinuingOperationsbeforeIncomeTaxesAttributabletoParent_5e8b8b11-f37c-4af9-9ccf-139da6d44e96" xlink:href="trow-20231231.xsd#trow_IncomeLossfromContinuingOperationsbeforeIncomeTaxesAttributabletoParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedIncomeStatementsCaptionsLineItems_f75eaae2-5dc7-4ccb-a523-c01e7d05b04d" xlink:to="loc_trow_IncomeLossfromContinuingOperationsbeforeIncomeTaxesAttributabletoParent_5e8b8b11-f37c-4af9-9ccf-139da6d44e96" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToRedeemableNoncontrollingInterest_831ff84e-7f19-4857-ba72-82eb3573bc9d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLossAttributableToRedeemableNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedIncomeStatementsCaptionsLineItems_f75eaae2-5dc7-4ccb-a523-c01e7d05b04d" xlink:to="loc_us-gaap_NetIncomeLossAttributableToRedeemableNoncontrollingInterest_831ff84e-7f19-4857-ba72-82eb3573bc9d" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/CONSOLIDATEDSPONSOREDINVESTMENTPRODUCTSNarrativeDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#CONSOLIDATEDSPONSOREDINVESTMENTPRODUCTSNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/CONSOLIDATEDSPONSOREDINVESTMENTPRODUCTSNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_srt_CondensedIncomeStatementsCaptionsLineItems_3ac6d2a6-d096-410a-a6d5-533734262486" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_CondensedIncomeStatementsCaptionsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CondensedIncomeStatementTable_dd821b58-6030-4837-8914-0bd239160e7b" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_CondensedIncomeStatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_srt_CondensedIncomeStatementsCaptionsLineItems_3ac6d2a6-d096-410a-a6d5-533734262486" xlink:to="loc_srt_CondensedIncomeStatementTable_dd821b58-6030-4837-8914-0bd239160e7b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_327f61db-4d21-4914-b845-d62237f083bd" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_srt_CondensedIncomeStatementTable_dd821b58-6030-4837-8914-0bd239160e7b" xlink:to="loc_srt_ConsolidationItemsAxis_327f61db-4d21-4914-b845-d62237f083bd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_327f61db-4d21-4914-b845-d62237f083bd_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_327f61db-4d21-4914-b845-d62237f083bd" xlink:to="loc_srt_ConsolidationItemsDomain_327f61db-4d21-4914-b845-d62237f083bd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_64aa9e3c-6fab-4dc5-9f4a-7caa23714145" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_327f61db-4d21-4914-b845-d62237f083bd" xlink:to="loc_srt_ConsolidationItemsDomain_64aa9e3c-6fab-4dc5-9f4a-7caa23714145" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationEliminationsMember_49961b42-14ff-4618-904b-650e406eef04" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationEliminationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_64aa9e3c-6fab-4dc5-9f4a-7caa23714145" xlink:to="loc_srt_ConsolidationEliminationsMember_49961b42-14ff-4618-904b-650e406eef04" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_a5cd2289-229c-4559-80c2-c7d2e3aff6e2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedIncomeStatementsCaptionsLineItems_3ac6d2a6-d096-410a-a6d5-533734262486" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_a5cd2289-229c-4559-80c2-c7d2e3aff6e2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_9a162140-c504-4aa0-8fee-48d4f0b93ca7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedIncomeStatementsCaptionsLineItems_3ac6d2a6-d096-410a-a6d5-533734262486" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_9a162140-c504-4aa0-8fee-48d4f0b93ca7" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/CONSOLIDATEDSPONSOREDINVESTMENTPRODUCTSStatementofCashFlowsDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#CONSOLIDATEDSPONSOREDINVESTMENTPRODUCTSStatementofCashFlowsDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/CONSOLIDATEDSPONSOREDINVESTMENTPRODUCTSStatementofCashFlowsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_srt_CondensedCashFlowStatementsCaptionsLineItems_f6d4aff0-0c84-4fec-81c5-c665c4809001" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_CondensedCashFlowStatementsCaptionsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CondensedCashFlowStatementTable_290e33e4-7845-4a7e-8feb-41ca30893588" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_CondensedCashFlowStatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_srt_CondensedCashFlowStatementsCaptionsLineItems_f6d4aff0-0c84-4fec-81c5-c665c4809001" xlink:to="loc_srt_CondensedCashFlowStatementTable_290e33e4-7845-4a7e-8feb-41ca30893588" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis_ed021dc1-ab35-40bd-988a-03cc53fa6ed4" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_srt_CondensedCashFlowStatementTable_290e33e4-7845-4a7e-8feb-41ca30893588" xlink:to="loc_srt_ConsolidatedEntitiesAxis_ed021dc1-ab35-40bd-988a-03cc53fa6ed4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_ed021dc1-ab35-40bd-988a-03cc53fa6ed4_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidatedEntitiesAxis_ed021dc1-ab35-40bd-988a-03cc53fa6ed4" xlink:to="loc_srt_ConsolidatedEntitiesDomain_ed021dc1-ab35-40bd-988a-03cc53fa6ed4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_735a516d-8050-4ac4-9fb4-15fd23100766" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidatedEntitiesAxis_ed021dc1-ab35-40bd-988a-03cc53fa6ed4" xlink:to="loc_srt_ConsolidatedEntitiesDomain_735a516d-8050-4ac4-9fb4-15fd23100766" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_ConsolidatedInvestmentPortfoliosMember_48e424b5-eddd-42cc-ba1d-91e55a21c50e" xlink:href="trow-20231231.xsd#trow_ConsolidatedInvestmentPortfoliosMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_735a516d-8050-4ac4-9fb4-15fd23100766" xlink:to="loc_trow_ConsolidatedInvestmentPortfoliosMember_48e424b5-eddd-42cc-ba1d-91e55a21c50e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_VotingInterestEntitiesMember_b4086fec-3af3-4f62-81bc-0ba18e0652bd" xlink:href="trow-20231231.xsd#trow_VotingInterestEntitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_trow_ConsolidatedInvestmentPortfoliosMember_48e424b5-eddd-42cc-ba1d-91e55a21c50e" xlink:to="loc_trow_VotingInterestEntitiesMember_b4086fec-3af3-4f62-81bc-0ba18e0652bd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_cbf0d0c9-37c8-4809-b91d-00f17765c58a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableInterestEntityPrimaryBeneficiaryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_trow_ConsolidatedInvestmentPortfoliosMember_48e424b5-eddd-42cc-ba1d-91e55a21c50e" xlink:to="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_cbf0d0c9-37c8-4809-b91d-00f17765c58a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_1fcfef7b-c1eb-4723-8421-20e1e18fedf8" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_srt_CondensedCashFlowStatementTable_290e33e4-7845-4a7e-8feb-41ca30893588" xlink:to="loc_srt_ConsolidationItemsAxis_1fcfef7b-c1eb-4723-8421-20e1e18fedf8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_1fcfef7b-c1eb-4723-8421-20e1e18fedf8_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_1fcfef7b-c1eb-4723-8421-20e1e18fedf8" xlink:to="loc_srt_ConsolidationItemsDomain_1fcfef7b-c1eb-4723-8421-20e1e18fedf8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_be8604d2-e0c9-46db-a32a-3ee5f5d74d41" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_1fcfef7b-c1eb-4723-8421-20e1e18fedf8" xlink:to="loc_srt_ConsolidationItemsDomain_be8604d2-e0c9-46db-a32a-3ee5f5d74d41" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ReportableLegalEntitiesMember_27be05c3-df2d-47b2-9224-fef58a938ab5" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ReportableLegalEntitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_be8604d2-e0c9-46db-a32a-3ee5f5d74d41" xlink:to="loc_srt_ReportableLegalEntitiesMember_27be05c3-df2d-47b2-9224-fef58a938ab5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_97afaa2c-9c22-41f2-9692-a102ef138617" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedCashFlowStatementsCaptionsLineItems_f6d4aff0-0c84-4fec-81c5-c665c4809001" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_97afaa2c-9c22-41f2-9692-a102ef138617" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_aae72561-0e83-4349-8e23-43211d03bb7a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedCashFlowStatementsCaptionsLineItems_f6d4aff0-0c84-4fec-81c5-c665c4809001" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_aae72561-0e83-4349-8e23-43211d03bb7a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_070b3c16-78a8-443a-bf96-88d09c8db73e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedCashFlowStatementsCaptionsLineItems_f6d4aff0-0c84-4fec-81c5-c665c4809001" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_070b3c16-78a8-443a-bf96-88d09c8db73e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_3aeda42b-7cd8-4437-9d56-481f2faf884a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedCashFlowStatementsCaptionsLineItems_f6d4aff0-0c84-4fec-81c5-c665c4809001" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_3aeda42b-7cd8-4437-9d56-481f2faf884a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_b77c1942-1b28-4ea0-8e7d-4818bd660208" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedCashFlowStatementsCaptionsLineItems_f6d4aff0-0c84-4fec-81c5-c665c4809001" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_b77c1942-1b28-4ea0-8e7d-4818bd660208" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_1fa84b30-b282-4c83-a50a-2162c0745dda" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedCashFlowStatementsCaptionsLineItems_f6d4aff0-0c84-4fec-81c5-c665c4809001" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_1fa84b30-b282-4c83-a50a-2162c0745dda" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_3c8c32af-332f-4dc0-92fd-3b5282909747" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/CONSOLIDATEDSPONSOREDINVESTMENTPRODUCTSFairValueMeasurementsDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#CONSOLIDATEDSPONSOREDINVESTMENTPRODUCTSFairValueMeasurementsDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/CONSOLIDATEDSPONSOREDINVESTMENTPRODUCTSFairValueMeasurementsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_69e8ba9d-9d92-4a98-87ff-260d9d66d22a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_fb5e27db-201a-40df-ad66-30be7c4d55c3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_69e8ba9d-9d92-4a98-87ff-260d9d66d22a" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_fb5e27db-201a-40df-ad66-30be7c4d55c3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_5952d446-536a-4b9a-a98b-f746ccc8995e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_fb5e27db-201a-40df-ad66-30be7c4d55c3" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_5952d446-536a-4b9a-a98b-f746ccc8995e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_5952d446-536a-4b9a-a98b-f746ccc8995e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_5952d446-536a-4b9a-a98b-f746ccc8995e" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_5952d446-536a-4b9a-a98b-f746ccc8995e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_0ec99bb4-592f-43a3-9fe7-681742dd0bd4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_5952d446-536a-4b9a-a98b-f746ccc8995e" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_0ec99bb4-592f-43a3-9fe7-681742dd0bd4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_9f15827f-2665-4f5e-b13b-5cd25e875257" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_0ec99bb4-592f-43a3-9fe7-681742dd0bd4" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_9f15827f-2665-4f5e-b13b-5cd25e875257" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_0d2acc36-d6ba-48d2-8f50-a0855eff90dc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_fb5e27db-201a-40df-ad66-30be7c4d55c3" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_0d2acc36-d6ba-48d2-8f50-a0855eff90dc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0d2acc36-d6ba-48d2-8f50-a0855eff90dc_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_0d2acc36-d6ba-48d2-8f50-a0855eff90dc" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0d2acc36-d6ba-48d2-8f50-a0855eff90dc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_dbcf2d52-4c40-4c77-b963-14ab7ac4a514" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_0d2acc36-d6ba-48d2-8f50-a0855eff90dc" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_dbcf2d52-4c40-4c77-b963-14ab7ac4a514" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_b43aa648-c1a0-45e0-b931-f7768e029bf1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_dbcf2d52-4c40-4c77-b963-14ab7ac4a514" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_b43aa648-c1a0-45e0-b931-f7768e029bf1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_55b1ee24-564b-4e19-9e09-651ef611511b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_dbcf2d52-4c40-4c77-b963-14ab7ac4a514" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_55b1ee24-564b-4e19-9e09-651ef611511b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_bf3590a5-b94f-4475-a9ff-47ebe3f02092" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_dbcf2d52-4c40-4c77-b963-14ab7ac4a514" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_bf3590a5-b94f-4475-a9ff-47ebe3f02092" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis_ddd426dc-f36e-4a7d-8be3-e8f0c7b7a259" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_fb5e27db-201a-40df-ad66-30be7c4d55c3" xlink:to="loc_srt_ConsolidatedEntitiesAxis_ddd426dc-f36e-4a7d-8be3-e8f0c7b7a259" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_ddd426dc-f36e-4a7d-8be3-e8f0c7b7a259_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidatedEntitiesAxis_ddd426dc-f36e-4a7d-8be3-e8f0c7b7a259" xlink:to="loc_srt_ConsolidatedEntitiesDomain_ddd426dc-f36e-4a7d-8be3-e8f0c7b7a259_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_bf970c92-97ce-4256-bee1-b3aea85b1a38" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidatedEntitiesAxis_ddd426dc-f36e-4a7d-8be3-e8f0c7b7a259" xlink:to="loc_srt_ConsolidatedEntitiesDomain_bf970c92-97ce-4256-bee1-b3aea85b1a38" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_ConsolidatedInvestmentPortfoliosMember_bf714e8c-9f76-4d0c-b59e-b34cd1cfdf30" xlink:href="trow-20231231.xsd#trow_ConsolidatedInvestmentPortfoliosMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_bf970c92-97ce-4256-bee1-b3aea85b1a38" xlink:to="loc_trow_ConsolidatedInvestmentPortfoliosMember_bf714e8c-9f76-4d0c-b59e-b34cd1cfdf30" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_0c55bb73-4201-4812-b682-d54142f5a1eb" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_fb5e27db-201a-40df-ad66-30be7c4d55c3" xlink:to="loc_srt_RangeAxis_0c55bb73-4201-4812-b682-d54142f5a1eb" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_0c55bb73-4201-4812-b682-d54142f5a1eb_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_0c55bb73-4201-4812-b682-d54142f5a1eb" xlink:to="loc_srt_RangeMember_0c55bb73-4201-4812-b682-d54142f5a1eb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_13c2fc26-be30-476a-ad01-af44275647c8" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_0c55bb73-4201-4812-b682-d54142f5a1eb" xlink:to="loc_srt_RangeMember_13c2fc26-be30-476a-ad01-af44275647c8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_0e60ae4e-f1bb-451c-a1a6-93d0a05996d0" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_13c2fc26-be30-476a-ad01-af44275647c8" xlink:to="loc_srt_MinimumMember_0e60ae4e-f1bb-451c-a1a6-93d0a05996d0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_a6c7a6bf-1b0c-4186-981d-ff8228368789" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_13c2fc26-be30-476a-ad01-af44275647c8" xlink:to="loc_srt_MaximumMember_a6c7a6bf-1b0c-4186-981d-ff8228368789" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_d017b4c5-412c-4bf0-8dc7-deeb85f5ceda" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_69e8ba9d-9d92-4a98-87ff-260d9d66d22a" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_d017b4c5-412c-4bf0-8dc7-deeb85f5ceda" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsFairValueDisclosure_59e87f0b-070c-45a8-94d4-91d646175f86" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_69e8ba9d-9d92-4a98-87ff-260d9d66d22a" xlink:to="loc_us-gaap_InvestmentsFairValueDisclosure_59e87f0b-070c-45a8-94d4-91d646175f86" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_bda8b791-89ef-4ff5-9015-2ea6fe5981e5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_69e8ba9d-9d92-4a98-87ff-260d9d66d22a" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_bda8b791-89ef-4ff5-9015-2ea6fe5981e5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherInvestments_672a14ad-1a0a-45a1-94eb-ad65ae474d6a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_69e8ba9d-9d92-4a98-87ff-260d9d66d22a" xlink:to="loc_us-gaap_OtherInvestments_672a14ad-1a0a-45a1-94eb-ad65ae474d6a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_20903ebe-c6cb-45de-b096-f83a4db30c3a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_69e8ba9d-9d92-4a98-87ff-260d9d66d22a" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_20903ebe-c6cb-45de-b096-f83a4db30c3a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_d05651e2-b802-4080-adc9-6c9e4a67e901" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_69e8ba9d-9d92-4a98-87ff-260d9d66d22a" xlink:to="loc_us-gaap_LiabilitiesFairValueDisclosure_d05651e2-b802-4080-adc9-6c9e4a67e901" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_OtherInvestmentsMeasurementInput_263a88f8-5753-406f-a5c4-c743b635fbbf" xlink:href="trow-20231231.xsd#trow_OtherInvestmentsMeasurementInput"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_69e8ba9d-9d92-4a98-87ff-260d9d66d22a" xlink:to="loc_trow_OtherInvestmentsMeasurementInput_263a88f8-5753-406f-a5c4-c743b635fbbf" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/PROPERTYEQUIPMENTANDSOFTWAREScheduleofPropertyPlantandSoftwareDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#PROPERTYEQUIPMENTANDSOFTWAREScheduleofPropertyPlantandSoftwareDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/PROPERTYEQUIPMENTANDSOFTWAREScheduleofPropertyPlantandSoftwareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_1794e71a-320f-4bf5-b631-01daada80401" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_6a32e5f6-963e-4b42-81ad-a89bf1fa3651" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_1794e71a-320f-4bf5-b631-01daada80401" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_6a32e5f6-963e-4b42-81ad-a89bf1fa3651" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_613f4c74-7a34-4c53-823e-5ba7f85c64af" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_6a32e5f6-963e-4b42-81ad-a89bf1fa3651" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_613f4c74-7a34-4c53-823e-5ba7f85c64af" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_613f4c74-7a34-4c53-823e-5ba7f85c64af_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_613f4c74-7a34-4c53-823e-5ba7f85c64af" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_613f4c74-7a34-4c53-823e-5ba7f85c64af_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_e92725ca-d54b-420c-a148-47cd36bf078f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_613f4c74-7a34-4c53-823e-5ba7f85c64af" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_e92725ca-d54b-420c-a148-47cd36bf078f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_ComputerAndCommunicationsSoftwareAndEquipmentMember_88dcf02c-1e37-4868-b09e-0a0f1f59f03d" xlink:href="trow-20231231.xsd#trow_ComputerAndCommunicationsSoftwareAndEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_e92725ca-d54b-420c-a148-47cd36bf078f" xlink:to="loc_trow_ComputerAndCommunicationsSoftwareAndEquipmentMember_88dcf02c-1e37-4868-b09e-0a0f1f59f03d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingAndBuildingImprovementsMember_9f5f392f-1993-4e45-a82f-eb3a67fecd3e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BuildingAndBuildingImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_e92725ca-d54b-420c-a148-47cd36bf078f" xlink:to="loc_us-gaap_BuildingAndBuildingImprovementsMember_9f5f392f-1993-4e45-a82f-eb3a67fecd3e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseholdImprovementsMember_1e162dfa-93e7-4d3f-81b8-5a6d4b27e344" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LeaseholdImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_e92725ca-d54b-420c-a148-47cd36bf078f" xlink:to="loc_us-gaap_LeaseholdImprovementsMember_1e162dfa-93e7-4d3f-81b8-5a6d4b27e344" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_42ef301e-eb44-49aa-b715-18fae4c67230" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FurnitureAndFixturesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_e92725ca-d54b-420c-a148-47cd36bf078f" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_42ef301e-eb44-49aa-b715-18fae4c67230" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandMember_019ec1f4-d4ea-4912-ad7e-638e55790052" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LandMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_e92725ca-d54b-420c-a148-47cd36bf078f" xlink:to="loc_us-gaap_LandMember_019ec1f4-d4ea-4912-ad7e-638e55790052" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_8fd614dc-36ff-40a0-893b-75a69385a18a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_1794e71a-320f-4bf5-b631-01daada80401" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_8fd614dc-36ff-40a0-893b-75a69385a18a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_7fd78c57-fc08-499c-b2d7-e48d63ef4e62" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_1794e71a-320f-4bf5-b631-01daada80401" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_7fd78c57-fc08-499c-b2d7-e48d63ef4e62" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_c4c7305d-aa3f-442a-a7c5-f7dcbce835f1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_1794e71a-320f-4bf5-b631-01daada80401" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_c4c7305d-aa3f-442a-a7c5-f7dcbce835f1" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/PROPERTYEQUIPMENTANDSOFTWAREAdditionalInformationDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#PROPERTYEQUIPMENTANDSOFTWAREAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/PROPERTYEQUIPMENTANDSOFTWAREAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_45d5f4fa-a0e4-4a0c-9ad9-486082aa6579" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_87cad85a-b9e5-4a52-b2b3-3972a3472bbc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_45d5f4fa-a0e4-4a0c-9ad9-486082aa6579" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_87cad85a-b9e5-4a52-b2b3-3972a3472bbc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_199ed74e-931b-4804-8f10-706381f86d12" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_87cad85a-b9e5-4a52-b2b3-3972a3472bbc" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_199ed74e-931b-4804-8f10-706381f86d12" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_199ed74e-931b-4804-8f10-706381f86d12_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_199ed74e-931b-4804-8f10-706381f86d12" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_199ed74e-931b-4804-8f10-706381f86d12_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_554c3501-db11-4ef0-8997-461821bf0177" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_199ed74e-931b-4804-8f10-706381f86d12" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_554c3501-db11-4ef0-8997-461821bf0177" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareDevelopmentMember_3e44f277-65ee-4dd6-9389-e37e30ec6fcf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SoftwareDevelopmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_554c3501-db11-4ef0-8997-461821bf0177" xlink:to="loc_us-gaap_SoftwareDevelopmentMember_3e44f277-65ee-4dd6-9389-e37e30ec6fcf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAdditions_071d8eb0-3af6-4f75-93a1-54eb8ebb967d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentAdditions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_45d5f4fa-a0e4-4a0c-9ad9-486082aa6579" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAdditions_071d8eb0-3af6-4f75-93a1-54eb8ebb967d" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/GOODWILLANDINTANGIBLEASSETSGoodwillandIntangibleAssetsDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#GOODWILLANDINTANGIBLEASSETSGoodwillandIntangibleAssetsDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/GOODWILLANDINTANGIBLEASSETSGoodwillandIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_trow_ScheduleOfIntangibleAssetsAndGoodwillLineItems_7444335f-524d-476a-8b1d-ab0d0a285721" xlink:href="trow-20231231.xsd#trow_ScheduleOfIntangibleAssetsAndGoodwillLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_ScheduleOfIntangibleAssetsAndGoodwillTable_1b842364-c738-4d33-868e-53906b5fb7ce" xlink:href="trow-20231231.xsd#trow_ScheduleOfIntangibleAssetsAndGoodwillTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_trow_ScheduleOfIntangibleAssetsAndGoodwillLineItems_7444335f-524d-476a-8b1d-ab0d0a285721" xlink:to="loc_trow_ScheduleOfIntangibleAssetsAndGoodwillTable_1b842364-c738-4d33-868e-53906b5fb7ce" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_7a0604d8-6cd8-4560-8cd3-d28f0f06c32e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_trow_ScheduleOfIntangibleAssetsAndGoodwillTable_1b842364-c738-4d33-868e-53906b5fb7ce" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_7a0604d8-6cd8-4560-8cd3-d28f0f06c32e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_7a0604d8-6cd8-4560-8cd3-d28f0f06c32e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_7a0604d8-6cd8-4560-8cd3-d28f0f06c32e" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_7a0604d8-6cd8-4560-8cd3-d28f0f06c32e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_5e54a7ca-ec1f-4f08-8172-67169c3fe9dd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_7a0604d8-6cd8-4560-8cd3-d28f0f06c32e" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_5e54a7ca-ec1f-4f08-8172-67169c3fe9dd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeNamesMember_afcc6346-ace4-4cab-b0d6-1294218a721c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_5e54a7ca-ec1f-4f08-8172-67169c3fe9dd" xlink:to="loc_us-gaap_TradeNamesMember_afcc6346-ace4-4cab-b0d6-1294218a721c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_InvestmentAdvisoryAgreementsMember_881f3d73-c971-40f5-b948-4cd818a3e42a" xlink:href="trow-20231231.xsd#trow_InvestmentAdvisoryAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_5e54a7ca-ec1f-4f08-8172-67169c3fe9dd" xlink:to="loc_trow_InvestmentAdvisoryAgreementsMember_881f3d73-c971-40f5-b948-4cd818a3e42a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_d6e5e1d9-289d-4c06-99d7-bec41fed58c1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_trow_ScheduleOfIntangibleAssetsAndGoodwillTable_1b842364-c738-4d33-868e-53906b5fb7ce" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_d6e5e1d9-289d-4c06-99d7-bec41fed58c1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_d6e5e1d9-289d-4c06-99d7-bec41fed58c1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_d6e5e1d9-289d-4c06-99d7-bec41fed58c1" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_d6e5e1d9-289d-4c06-99d7-bec41fed58c1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_6f68cf9b-0a8b-470b-a458-3c59f0714c6b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_d6e5e1d9-289d-4c06-99d7-bec41fed58c1" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_6f68cf9b-0a8b-470b-a458-3c59f0714c6b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_InvestmentAdvisoryAgreementsMember_c427905d-f24b-4c14-b142-96ccedfcae01" xlink:href="trow-20231231.xsd#trow_InvestmentAdvisoryAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_6f68cf9b-0a8b-470b-a458-3c59f0714c6b" xlink:to="loc_trow_InvestmentAdvisoryAgreementsMember_c427905d-f24b-4c14-b142-96ccedfcae01" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_105b0ea1-0a32-4b1f-95f8-be81b17560f5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_trow_ScheduleOfIntangibleAssetsAndGoodwillLineItems_7444335f-524d-476a-8b1d-ab0d0a285721" xlink:to="loc_us-gaap_Goodwill_105b0ea1-0a32-4b1f-95f8-be81b17560f5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_c53c9319-13f7-43a0-9202-db72f88ad078" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_trow_ScheduleOfIntangibleAssetsAndGoodwillLineItems_7444335f-524d-476a-8b1d-ab0d0a285721" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_c53c9319-13f7-43a0-9202-db72f88ad078" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_14da1725-eeb2-4856-a977-8a8a8d06fab3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_trow_ScheduleOfIntangibleAssetsAndGoodwillLineItems_7444335f-524d-476a-8b1d-ab0d0a285721" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_14da1725-eeb2-4856-a977-8a8a8d06fab3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_68416236-7014-4017-9919-18555610a03a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IntangibleAssetsNetIncludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_trow_ScheduleOfIntangibleAssetsAndGoodwillLineItems_7444335f-524d-476a-8b1d-ab0d0a285721" xlink:to="loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_68416236-7014-4017-9919-18555610a03a" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/GOODWILLANDINTANGIBLEASSETSNarrativeDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#GOODWILLANDINTANGIBLEASSETSNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/GOODWILLANDINTANGIBLEASSETSNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_d1ce95b3-3887-4b94-99dd-19c1fde8a46f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_b0a28884-27d6-42f6-b17e-d6e0780dd76d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_d1ce95b3-3887-4b94-99dd-19c1fde8a46f" xlink:to="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_b0a28884-27d6-42f6-b17e-d6e0780dd76d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_12bd4411-5ce7-4646-8c3e-afcea8d9b7f7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_b0a28884-27d6-42f6-b17e-d6e0780dd76d" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_12bd4411-5ce7-4646-8c3e-afcea8d9b7f7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_12bd4411-5ce7-4646-8c3e-afcea8d9b7f7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_12bd4411-5ce7-4646-8c3e-afcea8d9b7f7" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_12bd4411-5ce7-4646-8c3e-afcea8d9b7f7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_a457dee6-ab38-4b11-90d7-1b83793bb322" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_12bd4411-5ce7-4646-8c3e-afcea8d9b7f7" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_a457dee6-ab38-4b11-90d7-1b83793bb322" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_InvestmentAdvisoryAgreementsMember_5db73465-7a87-44b0-9dbe-2ebccaace7a3" xlink:href="trow-20231231.xsd#trow_InvestmentAdvisoryAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_a457dee6-ab38-4b11-90d7-1b83793bb322" xlink:to="loc_trow_InvestmentAdvisoryAgreementsMember_5db73465-7a87-44b0-9dbe-2ebccaace7a3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeNamesMember_bb9e14e5-4316-4e98-ad58-c03297ddbac2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_a457dee6-ab38-4b11-90d7-1b83793bb322" xlink:to="loc_us-gaap_TradeNamesMember_bb9e14e5-4316-4e98-ad58-c03297ddbac2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill_851bec1c-966b-4916-8259-88b9e40e2332" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_d1ce95b3-3887-4b94-99dd-19c1fde8a46f" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill_851bec1c-966b-4916-8259-88b9e40e2332" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/GOODWILLANDINTANGIBLEASSETSIntangibleAssetsDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#GOODWILLANDINTANGIBLEASSETSIntangibleAssetsDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/GOODWILLANDINTANGIBLEASSETSIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_trow_ScheduleOfIntangibleAssetsAndGoodwillLineItems_541c4f46-35cd-4f2c-9a00-014a9a04c9e6" xlink:href="trow-20231231.xsd#trow_ScheduleOfIntangibleAssetsAndGoodwillLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_ScheduleOfIntangibleAssetsAndGoodwillTable_56c5798b-e1ce-40df-a578-70e0e84eb276" xlink:href="trow-20231231.xsd#trow_ScheduleOfIntangibleAssetsAndGoodwillTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_trow_ScheduleOfIntangibleAssetsAndGoodwillLineItems_541c4f46-35cd-4f2c-9a00-014a9a04c9e6" xlink:to="loc_trow_ScheduleOfIntangibleAssetsAndGoodwillTable_56c5798b-e1ce-40df-a578-70e0e84eb276" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_37312cad-2270-495c-8f2f-b7e1a24fa7a9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_trow_ScheduleOfIntangibleAssetsAndGoodwillTable_56c5798b-e1ce-40df-a578-70e0e84eb276" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_37312cad-2270-495c-8f2f-b7e1a24fa7a9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_37312cad-2270-495c-8f2f-b7e1a24fa7a9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_37312cad-2270-495c-8f2f-b7e1a24fa7a9" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_37312cad-2270-495c-8f2f-b7e1a24fa7a9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_f45a2d4c-68f9-4cd8-ab63-b585c3b5edf8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_37312cad-2270-495c-8f2f-b7e1a24fa7a9" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_f45a2d4c-68f9-4cd8-ab63-b585c3b5edf8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_InvestmentAdvisoryAgreementsMember_c199ec82-df21-43a3-a28d-59137b1b5456" xlink:href="trow-20231231.xsd#trow_InvestmentAdvisoryAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_f45a2d4c-68f9-4cd8-ab63-b585c3b5edf8" xlink:to="loc_trow_InvestmentAdvisoryAgreementsMember_c199ec82-df21-43a3-a28d-59137b1b5456" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_81e7ab97-7eb8-4b7d-8369-0fcb913b3d85" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_trow_ScheduleOfIntangibleAssetsAndGoodwillTable_56c5798b-e1ce-40df-a578-70e0e84eb276" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_81e7ab97-7eb8-4b7d-8369-0fcb913b3d85" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_81e7ab97-7eb8-4b7d-8369-0fcb913b3d85_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_81e7ab97-7eb8-4b7d-8369-0fcb913b3d85" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_81e7ab97-7eb8-4b7d-8369-0fcb913b3d85_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_be9d164f-de71-4c8b-9a85-ac299039d41a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_81e7ab97-7eb8-4b7d-8369-0fcb913b3d85" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_be9d164f-de71-4c8b-9a85-ac299039d41a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_InvestmentAdvisoryAgreementsMember_31503b6f-322b-4f85-aac7-4de7d9bcc78d" xlink:href="trow-20231231.xsd#trow_InvestmentAdvisoryAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_be9d164f-de71-4c8b-9a85-ac299039d41a" xlink:to="loc_trow_InvestmentAdvisoryAgreementsMember_31503b6f-322b-4f85-aac7-4de7d9bcc78d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract_0a7b2945-51ab-4c59-b815-2b8db5fa3bcd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_trow_ScheduleOfIntangibleAssetsAndGoodwillLineItems_541c4f46-35cd-4f2c-9a00-014a9a04c9e6" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract_0a7b2945-51ab-4c59-b815-2b8db5fa3bcd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_fc1ef72c-b894-4a5b-b2c9-d09e317fa99b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract_0a7b2945-51ab-4c59-b815-2b8db5fa3bcd" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_fc1ef72c-b894-4a5b-b2c9-d09e317fa99b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_24439f90-7308-452c-bd41-a57bfdc7784f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsNetAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_trow_ScheduleOfIntangibleAssetsAndGoodwillLineItems_541c4f46-35cd-4f2c-9a00-014a9a04c9e6" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_24439f90-7308-452c-bd41-a57bfdc7784f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_ced535b8-c396-4f7c-8b4a-2bd4e41a6a10" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_24439f90-7308-452c-bd41-a57bfdc7784f" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_ced535b8-c396-4f7c-8b4a-2bd4e41a6a10" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_1b60a8e0-3fce-4fcf-aef8-3564178c3568" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_24439f90-7308-452c-bd41-a57bfdc7784f" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_1b60a8e0-3fce-4fcf-aef8-3564178c3568" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d11bdb32-ab4f-4b7c-a55a-d5c3616b6479" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_24439f90-7308-452c-bd41-a57bfdc7784f" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d11bdb32-ab4f-4b7c-a55a-d5c3616b6479" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/GOODWILLANDINTANGIBLEASSETSAmortizationExpenseDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#GOODWILLANDINTANGIBLEASSETSAmortizationExpenseDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/GOODWILLANDINTANGIBLEASSETSAmortizationExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_227a18b7-c122-4b11-ab10-3c0affa76614" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_2977556b-3851-489b-afa1-0fc93d319d43" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_227a18b7-c122-4b11-ab10-3c0affa76614" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_2977556b-3851-489b-afa1-0fc93d319d43" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_22755da7-7f3a-45f1-81dc-789693669f84" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_2977556b-3851-489b-afa1-0fc93d319d43" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_22755da7-7f3a-45f1-81dc-789693669f84" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_22755da7-7f3a-45f1-81dc-789693669f84_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_22755da7-7f3a-45f1-81dc-789693669f84" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_22755da7-7f3a-45f1-81dc-789693669f84_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_cdce8fbc-9da6-49a3-b6f7-08137f86468f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_22755da7-7f3a-45f1-81dc-789693669f84" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_cdce8fbc-9da6-49a3-b6f7-08137f86468f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_InvestmentAdvisoryAgreementsMember_b5ba86d0-d074-49bc-a64b-d235d12d8696" xlink:href="trow-20231231.xsd#trow_InvestmentAdvisoryAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_cdce8fbc-9da6-49a3-b6f7-08137f86468f" xlink:to="loc_trow_InvestmentAdvisoryAgreementsMember_b5ba86d0-d074-49bc-a64b-d235d12d8696" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_9ffaedaf-c513-48c7-8a67-ddd26128bd44" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_227a18b7-c122-4b11-ab10-3c0affa76614" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_9ffaedaf-c513-48c7-8a67-ddd26128bd44" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_05157f4e-2205-4ee1-8326-f1926336d775" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_227a18b7-c122-4b11-ab10-3c0affa76614" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_05157f4e-2205-4ee1-8326-f1926336d775" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_5dac43a9-1b14-46a8-91f0-4efac2465043" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_227a18b7-c122-4b11-ab10-3c0affa76614" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_5dac43a9-1b14-46a8-91f0-4efac2465043" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_d269daf8-84d9-45d9-9991-7d25ab2b43be" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_227a18b7-c122-4b11-ab10-3c0affa76614" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_d269daf8-84d9-45d9-9991-7d25ab2b43be" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_97e1a0d9-8b97-4575-bb78-4f46600cbbe6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_227a18b7-c122-4b11-ab10-3c0affa76614" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_97e1a0d9-8b97-4575-bb78-4f46600cbbe6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_1ee72aa6-846a-4025-9ab8-05acc681d3a7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_227a18b7-c122-4b11-ab10-3c0affa76614" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_1ee72aa6-846a-4025-9ab8-05acc681d3a7" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/STOCKBASEDCOMPENSATIONSharesAuthorizedForStockBasedCompensationProgramsDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#STOCKBASEDCOMPENSATIONSharesAuthorizedForStockBasedCompensationProgramsDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/STOCKBASEDCOMPENSATIONSharesAuthorizedForStockBasedCompensationProgramsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_85f71ced-22e5-43e0-a4de-776ad2e991a0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_71fbfd87-b7a8-4070-9874-9e20cbf43c00" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_85f71ced-22e5-43e0-a4de-776ad2e991a0" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_71fbfd87-b7a8-4070-9874-9e20cbf43c00" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_e5ed80ab-77fe-4fbd-9be3-23f844a7c50a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_71fbfd87-b7a8-4070-9874-9e20cbf43c00" xlink:to="loc_us-gaap_AwardTypeAxis_e5ed80ab-77fe-4fbd-9be3-23f844a7c50a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_e5ed80ab-77fe-4fbd-9be3-23f844a7c50a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_e5ed80ab-77fe-4fbd-9be3-23f844a7c50a" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_e5ed80ab-77fe-4fbd-9be3-23f844a7c50a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4d843a67-8b2e-43ce-a431-d46080240eb8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_e5ed80ab-77fe-4fbd-9be3-23f844a7c50a" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4d843a67-8b2e-43ce-a431-d46080240eb8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockCompensationPlanMember_7b30513b-9a5a-455f-87d7-1643c4e6f2fa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockCompensationPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4d843a67-8b2e-43ce-a431-d46080240eb8" xlink:to="loc_us-gaap_StockCompensationPlanMember_7b30513b-9a5a-455f-87d7-1643c4e6f2fa" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockMember_34cf51e6-e19d-40e0-a207-9fdc32eb3ce5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4d843a67-8b2e-43ce-a431-d46080240eb8" xlink:to="loc_us-gaap_EmployeeStockMember_34cf51e6-e19d-40e0-a207-9fdc32eb3ce5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_c0b038e8-d9b1-4ff3-a318-5f51cf3fb00a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_85f71ced-22e5-43e0-a4de-776ad2e991a0" xlink:to="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_c0b038e8-d9b1-4ff3-a318-5f51cf3fb00a" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/STOCKBASEDCOMPENSATIONStockOptionsNarrativeDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#STOCKBASEDCOMPENSATIONStockOptionsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/STOCKBASEDCOMPENSATIONStockOptionsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8cc1d5d2-abe2-46e3-8080-9221ccd746ea" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_be75349b-4638-47a7-a012-168d71be635f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8cc1d5d2-abe2-46e3-8080-9221ccd746ea" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_be75349b-4638-47a7-a012-168d71be635f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_14ee7e53-420e-495b-a094-59d36cff357a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_be75349b-4638-47a7-a012-168d71be635f" xlink:to="loc_us-gaap_AwardTypeAxis_14ee7e53-420e-495b-a094-59d36cff357a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_14ee7e53-420e-495b-a094-59d36cff357a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_14ee7e53-420e-495b-a094-59d36cff357a" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_14ee7e53-420e-495b-a094-59d36cff357a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_59b5b6be-46e7-465d-8299-13a9dace3dcb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_14ee7e53-420e-495b-a094-59d36cff357a" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_59b5b6be-46e7-465d-8299-13a9dace3dcb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_45dd38c6-5158-4440-bc21-52b825be18e1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_59b5b6be-46e7-465d-8299-13a9dace3dcb" xlink:to="loc_us-gaap_EmployeeStockOptionMember_45dd38c6-5158-4440-bc21-52b825be18e1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_26d00a60-7f18-4249-b4f4-2490eee74480" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_be75349b-4638-47a7-a012-168d71be635f" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_26d00a60-7f18-4249-b4f4-2490eee74480" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_26d00a60-7f18-4249-b4f4-2490eee74480_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_26d00a60-7f18-4249-b4f4-2490eee74480" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_26d00a60-7f18-4249-b4f4-2490eee74480_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_b14d30ae-5932-42e1-9e2a-7945b4e51d83" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_26d00a60-7f18-4249-b4f4-2490eee74480" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_b14d30ae-5932-42e1-9e2a-7945b4e51d83" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_CompensationAndRelatedCostMember_7a0549f7-6f13-4603-88f4-e873a7e34b76" xlink:href="trow-20231231.xsd#trow_CompensationAndRelatedCostMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_b14d30ae-5932-42e1-9e2a-7945b4e51d83" xlink:to="loc_trow_CompensationAndRelatedCostMember_7a0549f7-6f13-4603-88f4-e873a7e34b76" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_6e885f9c-4f8e-4839-a544-f1e1509ed5d1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8cc1d5d2-abe2-46e3-8080-9221ccd746ea" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_6e885f9c-4f8e-4839-a544-f1e1509ed5d1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_96d7b981-c4e4-4911-9050-802ab330eb7b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8cc1d5d2-abe2-46e3-8080-9221ccd746ea" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_96d7b981-c4e4-4911-9050-802ab330eb7b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_6b9fc9bc-62c5-46a2-9f7a-66f013e43c47" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8cc1d5d2-abe2-46e3-8080-9221ccd746ea" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_6b9fc9bc-62c5-46a2-9f7a-66f013e43c47" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/STOCKBASEDCOMPENSATIONRestrictedSharesandStockUnitsDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#STOCKBASEDCOMPENSATIONRestrictedSharesandStockUnitsDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/STOCKBASEDCOMPENSATIONRestrictedSharesandStockUnitsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_175d4194-98ad-4a42-b1c7-631e441f8724" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_f1960506-acd4-4a45-ad00-60cbda643754" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_175d4194-98ad-4a42-b1c7-631e441f8724" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_f1960506-acd4-4a45-ad00-60cbda643754" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_0a2c8fe4-4745-42d0-a8c7-3a3a28618656" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_f1960506-acd4-4a45-ad00-60cbda643754" xlink:to="loc_us-gaap_AwardTypeAxis_0a2c8fe4-4745-42d0-a8c7-3a3a28618656" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0a2c8fe4-4745-42d0-a8c7-3a3a28618656_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_0a2c8fe4-4745-42d0-a8c7-3a3a28618656" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0a2c8fe4-4745-42d0-a8c7-3a3a28618656_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4528d730-0152-4905-82e2-5a2b6863af26" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_0a2c8fe4-4745-42d0-a8c7-3a3a28618656" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4528d730-0152-4905-82e2-5a2b6863af26" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember_a87b064d-3b20-4686-8f76-f231aed31dde" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4528d730-0152-4905-82e2-5a2b6863af26" xlink:to="loc_us-gaap_RestrictedStockMember_a87b064d-3b20-4686-8f76-f231aed31dde" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_ceee0193-f7f4-48a7-95f4-3100e0fdfc1e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4528d730-0152-4905-82e2-5a2b6863af26" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_ceee0193-f7f4-48a7-95f4-3100e0fdfc1e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingAxis_0f4e9adb-0b6c-4a92-9fd1-02033d0bd33f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VestingAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_f1960506-acd4-4a45-ad00-60cbda643754" xlink:to="loc_us-gaap_VestingAxis_0f4e9adb-0b6c-4a92-9fd1-02033d0bd33f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_0f4e9adb-0b6c-4a92-9fd1-02033d0bd33f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VestingAxis_0f4e9adb-0b6c-4a92-9fd1-02033d0bd33f" xlink:to="loc_us-gaap_VestingDomain_0f4e9adb-0b6c-4a92-9fd1-02033d0bd33f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_469aac5b-9b9d-4ad3-91c4-b26a9e27ddf2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VestingAxis_0f4e9adb-0b6c-4a92-9fd1-02033d0bd33f" xlink:to="loc_us-gaap_VestingDomain_469aac5b-9b9d-4ad3-91c4-b26a9e27ddf2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_bbdcbe13-5616-4290-a279-49a42f871a62" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationAwardTrancheTwoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_469aac5b-9b9d-4ad3-91c4-b26a9e27ddf2" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_bbdcbe13-5616-4290-a279-49a42f871a62" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_19064649-baf6-444e-afe4-9c89f8b69b50" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_175d4194-98ad-4a42-b1c7-631e441f8724" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_19064649-baf6-444e-afe4-9c89f8b69b50" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_54d3084d-e7fb-4f53-b9be-02bca814b063" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_19064649-baf6-444e-afe4-9c89f8b69b50" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_54d3084d-e7fb-4f53-b9be-02bca814b063" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_57eade51-2e5a-4c4a-a0cc-daf1be7b8dd0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_19064649-baf6-444e-afe4-9c89f8b69b50" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_57eade51-2e5a-4c4a-a0cc-daf1be7b8dd0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_ae3de062-aac3-4fb1-a0c2-d3dc2780b7b0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_19064649-baf6-444e-afe4-9c89f8b69b50" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_ae3de062-aac3-4fb1-a0c2-d3dc2780b7b0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedDividendEquivalentsGrantedToNonEmployeeDirectors_d12f849b-2b87-4a4d-8be6-45c4076efd4a" xlink:href="trow-20231231.xsd#trow_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedDividendEquivalentsGrantedToNonEmployeeDirectors"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_19064649-baf6-444e-afe4-9c89f8b69b50" xlink:to="loc_trow_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedDividendEquivalentsGrantedToNonEmployeeDirectors_d12f849b-2b87-4a4d-8be6-45c4076efd4a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_6be6db55-1814-46b3-b219-0a7f7ac37132" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_19064649-baf6-444e-afe4-9c89f8b69b50" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_6be6db55-1814-46b3-b219-0a7f7ac37132" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_abc87508-e654-46cb-affa-df96df982ed5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_d10c6f4d-3b2f-4011-b403-377c49bdd1e3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_175d4194-98ad-4a42-b1c7-631e441f8724" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_d10c6f4d-3b2f-4011-b403-377c49bdd1e3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_41806fbf-6445-4ce9-a90e-1bba83ed6ed7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_d10c6f4d-3b2f-4011-b403-377c49bdd1e3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_41806fbf-6445-4ce9-a90e-1bba83ed6ed7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_2b99ab05-0a2c-49b2-8072-87e0b2e9a642" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_d10c6f4d-3b2f-4011-b403-377c49bdd1e3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_2b99ab05-0a2c-49b2-8072-87e0b2e9a642" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_d12c9a8d-0301-47d2-ad10-c98120c3c3fa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_d10c6f4d-3b2f-4011-b403-377c49bdd1e3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_d12c9a8d-0301-47d2-ad10-c98120c3c3fa" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_SharebasedCompensationArrangementBySharebasedPaymentAwardNonvestedDividendEquivalentsGrantedToNonEmployeeDirectorsWeightedAverageGrantDateFairValue_36631126-a979-41a4-9b14-33ba3775dace" xlink:href="trow-20231231.xsd#trow_SharebasedCompensationArrangementBySharebasedPaymentAwardNonvestedDividendEquivalentsGrantedToNonEmployeeDirectorsWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_d10c6f4d-3b2f-4011-b403-377c49bdd1e3" xlink:to="loc_trow_SharebasedCompensationArrangementBySharebasedPaymentAwardNonvestedDividendEquivalentsGrantedToNonEmployeeDirectorsWeightedAverageGrantDateFairValue_36631126-a979-41a4-9b14-33ba3775dace" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_db42536a-0fc1-4b2f-a4fd-0870c5b5d185" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_d10c6f4d-3b2f-4011-b403-377c49bdd1e3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_db42536a-0fc1-4b2f-a4fd-0870c5b5d185" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_3ae3ac2a-debe-4bc2-b442-ef6cb9b2ad4e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_8651d21b-7902-4599-9950-8d7afb37e0a4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_175d4194-98ad-4a42-b1c7-631e441f8724" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_8651d21b-7902-4599-9950-8d7afb37e0a4" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/STOCKBASEDCOMPENSATIONRestrictedSharesandStockUnitsNarrativeDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#STOCKBASEDCOMPENSATIONRestrictedSharesandStockUnitsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/STOCKBASEDCOMPENSATIONRestrictedSharesandStockUnitsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_982ec4fb-ee0c-4e38-93a9-a9ee52ce853a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_7e4e2c67-8a97-40dc-b953-580dc357835a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_982ec4fb-ee0c-4e38-93a9-a9ee52ce853a" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_7e4e2c67-8a97-40dc-b953-580dc357835a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_26ffbbc7-c3f1-4cc6-9e4f-8ab830d060de" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_7e4e2c67-8a97-40dc-b953-580dc357835a" xlink:to="loc_us-gaap_AwardTypeAxis_26ffbbc7-c3f1-4cc6-9e4f-8ab830d060de" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_26ffbbc7-c3f1-4cc6-9e4f-8ab830d060de_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_26ffbbc7-c3f1-4cc6-9e4f-8ab830d060de" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_26ffbbc7-c3f1-4cc6-9e4f-8ab830d060de_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f0ef4083-b25a-4cbe-bf71-c1b0787b3ac3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_26ffbbc7-c3f1-4cc6-9e4f-8ab830d060de" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f0ef4083-b25a-4cbe-bf71-c1b0787b3ac3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_9e73f80a-8cc1-41d7-ac96-131af9b10e63" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f0ef4083-b25a-4cbe-bf71-c1b0787b3ac3" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_9e73f80a-8cc1-41d7-ac96-131af9b10e63" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_RestrictedStockAndRestrictedStockUnitsMember_70200560-331f-4186-ada3-ae2ebd954d20" xlink:href="trow-20231231.xsd#trow_RestrictedStockAndRestrictedStockUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f0ef4083-b25a-4cbe-bf71-c1b0787b3ac3" xlink:to="loc_trow_RestrictedStockAndRestrictedStockUnitsMember_70200560-331f-4186-ada3-ae2ebd954d20" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingAxis_1a854f2e-c7a8-4f91-9e41-69f2748da643" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VestingAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_7e4e2c67-8a97-40dc-b953-580dc357835a" xlink:to="loc_us-gaap_VestingAxis_1a854f2e-c7a8-4f91-9e41-69f2748da643" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_1a854f2e-c7a8-4f91-9e41-69f2748da643_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VestingAxis_1a854f2e-c7a8-4f91-9e41-69f2748da643" xlink:to="loc_us-gaap_VestingDomain_1a854f2e-c7a8-4f91-9e41-69f2748da643_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_ecc4831d-9705-47cc-a305-dee7e12c8aca" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VestingAxis_1a854f2e-c7a8-4f91-9e41-69f2748da643" xlink:to="loc_us-gaap_VestingDomain_ecc4831d-9705-47cc-a305-dee7e12c8aca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_7e24de7e-6680-4bd0-991e-4dbf2669839c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationAwardTrancheTwoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_ecc4831d-9705-47cc-a305-dee7e12c8aca" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_7e24de7e-6680-4bd0-991e-4dbf2669839c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_0308b5da-1c5f-4db8-8675-b1aa2ee0c07a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_7e4e2c67-8a97-40dc-b953-580dc357835a" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_0308b5da-1c5f-4db8-8675-b1aa2ee0c07a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_0308b5da-1c5f-4db8-8675-b1aa2ee0c07a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_0308b5da-1c5f-4db8-8675-b1aa2ee0c07a" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_0308b5da-1c5f-4db8-8675-b1aa2ee0c07a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_f96d9916-9f78-4720-b705-daf455dee52e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_0308b5da-1c5f-4db8-8675-b1aa2ee0c07a" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_f96d9916-9f78-4720-b705-daf455dee52e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_CompensationAndRelatedCostMember_83a1ba38-090b-42ce-8ff5-fdaf18ba7f64" xlink:href="trow-20231231.xsd#trow_CompensationAndRelatedCostMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_f96d9916-9f78-4720-b705-daf455dee52e" xlink:to="loc_trow_CompensationAndRelatedCostMember_83a1ba38-090b-42ce-8ff5-fdaf18ba7f64" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_735564aa-1533-4ec7-b16c-2fa210344011" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_982ec4fb-ee0c-4e38-93a9-a9ee52ce853a" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_735564aa-1533-4ec7-b16c-2fa210344011" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedPerformanceThresholdMetNumber_729bbc6b-a111-4eab-95ae-e40ec7d41a65" xlink:href="trow-20231231.xsd#trow_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedPerformanceThresholdMetNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_982ec4fb-ee0c-4e38-93a9-a9ee52ce853a" xlink:to="loc_trow_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedPerformanceThresholdMetNumber_729bbc6b-a111-4eab-95ae-e40ec7d41a65" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_90fc942f-1b5a-421e-ab31-bf23b183c8b9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_982ec4fb-ee0c-4e38-93a9-a9ee52ce853a" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_90fc942f-1b5a-421e-ab31-bf23b183c8b9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_VestedRestrictedStockUnits_046192bb-6fc9-49d7-b116-1be5fe9e48c1" xlink:href="trow-20231231.xsd#trow_VestedRestrictedStockUnits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_982ec4fb-ee0c-4e38-93a9-a9ee52ce853a" xlink:to="loc_trow_VestedRestrictedStockUnits_046192bb-6fc9-49d7-b116-1be5fe9e48c1" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/OTHERCOMPREHENSIVEINCOMEANDACCUMULATEDOTHERCOMPREHENSIVEINCOMEDeferredTaxBenefitsIncomeTaxesDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#OTHERCOMPREHENSIVEINCOMEANDACCUMULATEDOTHERCOMPREHENSIVEINCOMEDeferredTaxBenefitsIncomeTaxesDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/OTHERCOMPREHENSIVEINCOMEANDACCUMULATEDOTHERCOMPREHENSIVEINCOMEDeferredTaxBenefitsIncomeTaxesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_337a2c3c-0a8d-4785-b649-ef84ed00b1cd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8982740e-1402-497b-bf66-554908082ec3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_337a2c3c-0a8d-4785-b649-ef84ed00b1cd" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8982740e-1402-497b-bf66-554908082ec3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_da41f7d7-c9c2-4bee-a364-3714ba5a90ef" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8982740e-1402-497b-bf66-554908082ec3" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_da41f7d7-c9c2-4bee-a364-3714ba5a90ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_da41f7d7-c9c2-4bee-a364-3714ba5a90ef_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_da41f7d7-c9c2-4bee-a364-3714ba5a90ef" xlink:to="loc_us-gaap_EquityComponentDomain_da41f7d7-c9c2-4bee-a364-3714ba5a90ef_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_494c1ebf-e307-4632-90a4-6b8ec22cf3c1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_da41f7d7-c9c2-4bee-a364-3714ba5a90ef" xlink:to="loc_us-gaap_EquityComponentDomain_494c1ebf-e307-4632-90a4-6b8ec22cf3c1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedTranslationAdjustmentMember_1a62ae3f-fcaa-43c5-8a03-1d33f79c406a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedTranslationAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_494c1ebf-e307-4632-90a4-6b8ec22cf3c1" xlink:to="loc_us-gaap_AccumulatedTranslationAdjustmentMember_1a62ae3f-fcaa-43c5-8a03-1d33f79c406a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_AccumulatedForeignCurrencyAdjustmentAttributableToParentDeconsolidationMember_4138c1c6-30dd-41e7-9aef-aa5582c09241" xlink:href="trow-20231231.xsd#trow_AccumulatedForeignCurrencyAdjustmentAttributableToParentDeconsolidationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedTranslationAdjustmentMember_1a62ae3f-fcaa-43c5-8a03-1d33f79c406a" xlink:to="loc_trow_AccumulatedForeignCurrencyAdjustmentAttributableToParentDeconsolidationMember_4138c1c6-30dd-41e7-9aef-aa5582c09241" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_bde7b37b-90d0-4ccf-90df-65bef643d201" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_494c1ebf-e307-4632-90a4-6b8ec22cf3c1" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_bde7b37b-90d0-4ccf-90df-65bef643d201" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax_0d957dd4-2755-4644-afb9-62f61ffdfed8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_337a2c3c-0a8d-4785-b649-ef84ed00b1cd" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax_0d957dd4-2755-4644-afb9-62f61ffdfed8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAociCurrentPeriodTax_84107ca0-e540-498c-8aca-225d14469f57" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReclassificationFromAociCurrentPeriodTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_337a2c3c-0a8d-4785-b649-ef84ed00b1cd" xlink:to="loc_us-gaap_ReclassificationFromAociCurrentPeriodTax_84107ca0-e540-498c-8aca-225d14469f57" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1_10972681-cd21-476b-a703-8307a005264c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_337a2c3c-0a8d-4785-b649-ef84ed00b1cd" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1_10972681-cd21-476b-a703-8307a005264c" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/OTHERCOMPREHENSIVEINCOMEANDACCUMULATEDOTHERCOMPREHENSIVEINCOMEAccumulatedOtherComprehensiveIncomeDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#OTHERCOMPREHENSIVEINCOMEANDACCUMULATEDOTHERCOMPREHENSIVEINCOMEAccumulatedOtherComprehensiveIncomeDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/OTHERCOMPREHENSIVEINCOMEANDACCUMULATEDOTHERCOMPREHENSIVEINCOMEAccumulatedOtherComprehensiveIncomeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_5fa58968-1d10-447b-a6a7-1f30b4045216" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_7267ddaf-9bfa-4869-b109-4bb4cbf1bc7e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_5fa58968-1d10-447b-a6a7-1f30b4045216" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_7267ddaf-9bfa-4869-b109-4bb4cbf1bc7e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_579d9e8f-f884-4513-9bd5-f63a2f07f171" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_7267ddaf-9bfa-4869-b109-4bb4cbf1bc7e" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_579d9e8f-f884-4513-9bd5-f63a2f07f171" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_579d9e8f-f884-4513-9bd5-f63a2f07f171_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_579d9e8f-f884-4513-9bd5-f63a2f07f171" xlink:to="loc_us-gaap_EquityComponentDomain_579d9e8f-f884-4513-9bd5-f63a2f07f171_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_0c6d8560-4764-4378-8c09-459b70681544" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_579d9e8f-f884-4513-9bd5-f63a2f07f171" xlink:to="loc_us-gaap_EquityComponentDomain_0c6d8560-4764-4378-8c09-459b70681544" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedTranslationAdjustmentMember_28588fb8-d367-4366-a336-0d50b71dab2f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedTranslationAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0c6d8560-4764-4378-8c09-459b70681544" xlink:to="loc_us-gaap_AccumulatedTranslationAdjustmentMember_28588fb8-d367-4366-a336-0d50b71dab2f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_a048c654-98ad-4cf3-aaf3-6d6ba82c25f8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0c6d8560-4764-4378-8c09-459b70681544" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_a048c654-98ad-4cf3-aaf3-6d6ba82c25f8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis_e13007bb-134c-45a0-aaa7-e213d56d9611" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_7267ddaf-9bfa-4869-b109-4bb4cbf1bc7e" xlink:to="loc_srt_ConsolidatedEntitiesAxis_e13007bb-134c-45a0-aaa7-e213d56d9611" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_e13007bb-134c-45a0-aaa7-e213d56d9611_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidatedEntitiesAxis_e13007bb-134c-45a0-aaa7-e213d56d9611" xlink:to="loc_srt_ConsolidatedEntitiesDomain_e13007bb-134c-45a0-aaa7-e213d56d9611_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_19ca4211-59d5-414c-961b-80978e24e00a" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidatedEntitiesAxis_e13007bb-134c-45a0-aaa7-e213d56d9611" xlink:to="loc_srt_ConsolidatedEntitiesDomain_19ca4211-59d5-414c-961b-80978e24e00a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvesteeMember_c0d9fcac-1d73-4c8f-8280-e84c3e7408ee" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityMethodInvesteeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_19ca4211-59d5-414c-961b-80978e24e00a" xlink:to="loc_us-gaap_EquityMethodInvesteeMember_c0d9fcac-1d73-4c8f-8280-e84c3e7408ee" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_84cb598f-0226-4d0e-9a5e-244ecd7f07ca" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableInterestEntityPrimaryBeneficiaryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_19ca4211-59d5-414c-961b-80978e24e00a" xlink:to="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_84cb598f-0226-4d0e-9a5e-244ecd7f07ca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_d5cffcd3-2b58-4614-844e-8ff29638b465" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AOCIAttributableToParentNetOfTaxRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_5fa58968-1d10-447b-a6a7-1f30b4045216" xlink:to="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_d5cffcd3-2b58-4614-844e-8ff29638b465" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_5db5baf1-d192-4837-bf30-1cac86ab652f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_d5cffcd3-2b58-4614-844e-8ff29638b465" xlink:to="loc_us-gaap_StockholdersEquity_5db5baf1-d192-4837-bf30-1cac86ab652f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OciBeforeReclassificationsBeforeTaxAttributableToParent_d30d5d54-ff12-4f6f-9480-cd8ed1d62a70" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OciBeforeReclassificationsBeforeTaxAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_d5cffcd3-2b58-4614-844e-8ff29638b465" xlink:to="loc_us-gaap_OciBeforeReclassificationsBeforeTaxAttributableToParent_d30d5d54-ff12-4f6f-9480-cd8ed1d62a70" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent_17617a70-4152-4989-95c2-41b495d18310" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_d5cffcd3-2b58-4614-844e-8ff29638b465" xlink:to="loc_us-gaap_ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent_17617a70-4152-4989-95c2-41b495d18310" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_62490d47-723e-4cf2-aaf7-7c135045cc73" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_d5cffcd3-2b58-4614-844e-8ff29638b465" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_62490d47-723e-4cf2-aaf7-7c135045cc73" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1_2c916681-a52e-434e-9324-eccf4babd665" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_d5cffcd3-2b58-4614-844e-8ff29638b465" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1_2c916681-a52e-434e-9324-eccf4babd665" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_34efbf61-81b2-4050-b28a-61edc4b56c87" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_d5cffcd3-2b58-4614-844e-8ff29638b465" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_34efbf61-81b2-4050-b28a-61edc4b56c87" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_1ad408ce-ca3c-4f9e-bac3-3445dc6347bb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/COMMITMENTSANDCONTINGENCIESDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#COMMITMENTSANDCONTINGENCIESDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/COMMITMENTSANDCONTINGENCIESDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsLineItems_1ef73c36-696d-4c38-8e09-426026d52293" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherCommitmentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsTable_5976a784-5fc6-487f-90a8-d6c9cba08625" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherCommitmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_1ef73c36-696d-4c38-8e09-426026d52293" xlink:to="loc_us-gaap_OtherCommitmentsTable_5976a784-5fc6-487f-90a8-d6c9cba08625" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsAxis_8a054b5c-2e1c-47c2-b120-f5faf797da8b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherCommitmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OtherCommitmentsTable_5976a784-5fc6-487f-90a8-d6c9cba08625" xlink:to="loc_us-gaap_OtherCommitmentsAxis_8a054b5c-2e1c-47c2-b120-f5faf797da8b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsDomain_8a054b5c-2e1c-47c2-b120-f5faf797da8b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherCommitmentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_OtherCommitmentsAxis_8a054b5c-2e1c-47c2-b120-f5faf797da8b" xlink:to="loc_us-gaap_OtherCommitmentsDomain_8a054b5c-2e1c-47c2-b120-f5faf797da8b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsDomain_f6a326ae-47e0-45d5-9b7f-7d0abe14bdcb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherCommitmentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_OtherCommitmentsAxis_8a054b5c-2e1c-47c2-b120-f5faf797da8b" xlink:to="loc_us-gaap_OtherCommitmentsDomain_f6a326ae-47e0-45d5-9b7f-7d0abe14bdcb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_OHACommitmentsMember_fa1f28b9-ee46-4aa0-a727-31d84eea3468" xlink:href="trow-20231231.xsd#trow_OHACommitmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsDomain_f6a326ae-47e0-45d5-9b7f-7d0abe14bdcb" xlink:to="loc_trow_OHACommitmentsMember_fa1f28b9-ee46-4aa0-a727-31d84eea3468" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitment_f6f7d70b-5862-4e20-9064-85dcfc5e3a30" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherCommitment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_1ef73c36-696d-4c38-8e09-426026d52293" xlink:to="loc_us-gaap_OtherCommitment_f6f7d70b-5862-4e20-9064-85dcfc5e3a30" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_OtherCommitmentPeriod_cf523900-137a-4364-bb1a-5fd0893e311b" xlink:href="trow-20231231.xsd#trow_OtherCommitmentPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_1ef73c36-696d-4c38-8e09-426026d52293" xlink:to="loc_trow_OtherCommitmentPeriod_cf523900-137a-4364-bb1a-5fd0893e311b" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.troweprice.com/role/OTHERDISCLOSURESDetails" xlink:type="simple" xlink:href="trow-20231231.xsd#OTHERDISCLOSURESDetails"/>
  <link:definitionLink xlink:role="http://www.troweprice.com/role/OTHERDISCLOSURESDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems_e9a25ad0-79c3-455c-8811-444687d2d530" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTitleOfIndividualAndByTypeOfDeferredCompensationTable_3a237854-e9af-46a3-94d0-43bafd2f58fe" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTitleOfIndividualAndByTypeOfDeferredCompensationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems_e9a25ad0-79c3-455c-8811-444687d2d530" xlink:to="loc_us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTitleOfIndividualAndByTypeOfDeferredCompensationTable_3a237854-e9af-46a3-94d0-43bafd2f58fe" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_008bef6a-463a-4e80-8afa-1fffffc43d6e" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTitleOfIndividualAndByTypeOfDeferredCompensationTable_3a237854-e9af-46a3-94d0-43bafd2f58fe" xlink:to="loc_srt_RangeAxis_008bef6a-463a-4e80-8afa-1fffffc43d6e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_008bef6a-463a-4e80-8afa-1fffffc43d6e_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_008bef6a-463a-4e80-8afa-1fffffc43d6e" xlink:to="loc_srt_RangeMember_008bef6a-463a-4e80-8afa-1fffffc43d6e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_f4616c43-94b1-4b86-b548-f8199dbed03c" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_008bef6a-463a-4e80-8afa-1fffffc43d6e" xlink:to="loc_srt_RangeMember_f4616c43-94b1-4b86-b548-f8199dbed03c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_6c1196c3-cdfb-48b8-9c53-c35230ce557e" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_f4616c43-94b1-4b86-b548-f8199dbed03c" xlink:to="loc_srt_MaximumMember_6c1196c3-cdfb-48b8-9c53-c35230ce557e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualAxis_9b619e1f-98b0-4387-a243-ca766e0cf91f" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_TitleOfIndividualAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTitleOfIndividualAndByTypeOfDeferredCompensationTable_3a237854-e9af-46a3-94d0-43bafd2f58fe" xlink:to="loc_srt_TitleOfIndividualAxis_9b619e1f-98b0-4387-a243-ca766e0cf91f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_9b619e1f-98b0-4387-a243-ca766e0cf91f_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_TitleOfIndividualAxis_9b619e1f-98b0-4387-a243-ca766e0cf91f" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_9b619e1f-98b0-4387-a243-ca766e0cf91f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_571388dc-a50c-4f54-8cb9-3bf908eadef2" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_TitleOfIndividualAxis_9b619e1f-98b0-4387-a243-ca766e0cf91f" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_571388dc-a50c-4f54-8cb9-3bf908eadef2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ExecutiveOfficerMember_b6eb47c2-c868-41b1-8fca-e829d32748d1" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ExecutiveOfficerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_571388dc-a50c-4f54-8cb9-3bf908eadef2" xlink:to="loc_srt_ExecutiveOfficerMember_b6eb47c2-c868-41b1-8fca-e829d32748d1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis_f45674b4-dfc3-49eb-b579-c400a39ae539" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTitleOfIndividualAndByTypeOfDeferredCompensationTable_3a237854-e9af-46a3-94d0-43bafd2f58fe" xlink:to="loc_us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis_f45674b4-dfc3-49eb-b579-c400a39ae539" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredBonusAndProfitSharingArrangementIndividualContractTypeOfDeferredCompensationDomain_f45674b4-dfc3-49eb-b579-c400a39ae539_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredBonusAndProfitSharingArrangementIndividualContractTypeOfDeferredCompensationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis_f45674b4-dfc3-49eb-b579-c400a39ae539" xlink:to="loc_us-gaap_DeferredBonusAndProfitSharingArrangementIndividualContractTypeOfDeferredCompensationDomain_f45674b4-dfc3-49eb-b579-c400a39ae539_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredBonusAndProfitSharingArrangementIndividualContractTypeOfDeferredCompensationDomain_4e004b39-7bc7-4ace-92cd-7e8a1ace7e01" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredBonusAndProfitSharingArrangementIndividualContractTypeOfDeferredCompensationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis_f45674b4-dfc3-49eb-b579-c400a39ae539" xlink:to="loc_us-gaap_DeferredBonusAndProfitSharingArrangementIndividualContractTypeOfDeferredCompensationDomain_4e004b39-7bc7-4ace-92cd-7e8a1ace7e01" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredBonusMember_c187101b-0f1a-4b44-988d-fa18ecbae0a7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredBonusMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DeferredBonusAndProfitSharingArrangementIndividualContractTypeOfDeferredCompensationDomain_4e004b39-7bc7-4ace-92cd-7e8a1ace7e01" xlink:to="loc_us-gaap_DeferredBonusMember_c187101b-0f1a-4b44-988d-fa18ecbae0a7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanCostRecognized_fd16565c-05ae-417c-b020-bc5ebb0107e0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DefinedContributionPlanCostRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems_e9a25ad0-79c3-455c-8811-444687d2d530" xlink:to="loc_us-gaap_DefinedContributionPlanCostRecognized_fd16565c-05ae-417c-b020-bc5ebb0107e0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_DeferredCompensationArrangementwithIndividualCashAwardsGrantedPercentageDeferred_75ceadfc-8652-43d3-a0bd-3d377f7c9a5f" xlink:href="trow-20231231.xsd#trow_DeferredCompensationArrangementwithIndividualCashAwardsGrantedPercentageDeferred"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems_e9a25ad0-79c3-455c-8811-444687d2d530" xlink:to="loc_trow_DeferredCompensationArrangementwithIndividualCashAwardsGrantedPercentageDeferred_75ceadfc-8652-43d3-a0bd-3d377f7c9a5f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_DeferredCompensationArrangementWithIndividualCashAwardsGrantedAmountDeferred_22af9fa5-b8c1-462a-b262-d934695035be" xlink:href="trow-20231231.xsd#trow_DeferredCompensationArrangementWithIndividualCashAwardsGrantedAmountDeferred"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems_e9a25ad0-79c3-455c-8811-444687d2d530" xlink:to="loc_trow_DeferredCompensationArrangementWithIndividualCashAwardsGrantedAmountDeferred_22af9fa5-b8c1-462a-b262-d934695035be" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_DeferredCompensationArrangementwithIndividualInitialMinimumContractualTerm_85d5f321-4d8c-4fda-85a5-6e40ef515618" xlink:href="trow-20231231.xsd#trow_DeferredCompensationArrangementwithIndividualInitialMinimumContractualTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems_e9a25ad0-79c3-455c-8811-444687d2d530" xlink:to="loc_trow_DeferredCompensationArrangementwithIndividualInitialMinimumContractualTerm_85d5f321-4d8c-4fda-85a5-6e40ef515618" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_trow_DeferredCompensationArrangementwithIndividualInitialMaximumContractualTerm_17f6a978-0ad4-4570-9b68-0bb50a58479a" xlink:href="trow-20231231.xsd#trow_DeferredCompensationArrangementwithIndividualInitialMaximumContractualTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems_e9a25ad0-79c3-455c-8811-444687d2d530" xlink:to="loc_trow_DeferredCompensationArrangementwithIndividualInitialMaximumContractualTerm_17f6a978-0ad4-4570-9b68-0bb50a58479a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualCashAwardGrantedAmount_a5019c4e-e214-49ed-ae61-df916fd3afdd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredCompensationArrangementWithIndividualCashAwardGrantedAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems_e9a25ad0-79c3-455c-8811-444687d2d530" xlink:to="loc_us-gaap_DeferredCompensationArrangementWithIndividualCashAwardGrantedAmount_a5019c4e-e214-49ed-ae61-df916fd3afdd" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists" xlink:type="simple" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-roles-2023.xsd#eedm"/>
  <link:definitionLink xlink:role="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementAbstract" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfAcquisitionCosts" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AmortizationOfAcquisitionCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementAbstract" xlink:to="loc_us-gaap_AmortizationOfAcquisitionCosts" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfOtherComprehensiveIncomeAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementOfOtherComprehensiveIncomeAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementOfOtherComprehensiveIncomeAbstract" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax" xlink:type="arc" order="1"/>
  </link:definitionLink>
</link:linkbase>
