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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019fde55-12f9-7e2d-9c09-92349138343c,g:a470b9ee-cf52-4e0c-af70-190909689534-->
<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.resourcesglobal.com/role/CoverPage" xlink:type="simple" xlink:href="rgp-20260806.xsd#CoverPage"/>
  <link:definitionLink xlink:role="http://www.resourcesglobal.com/role/CoverPage" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressesTable_019fde55-12f9-77d3-b2c3-cb88204b4851" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_EntityAddressesTable_019fde55-12f9-77d3-b2c3-cb88204b4851" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressesAddressTypeAxis_019fde55-12f9-75cd-a03a-25a59e5d8e8d" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressesAddressTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_EntityAddressesTable_019fde55-12f9-77d3-b2c3-cb88204b4851" xlink:to="loc_dei_EntityAddressesAddressTypeAxis_019fde55-12f9-75cd-a03a-25a59e5d8e8d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AddressTypeDomain_019fde55-12f9-75cd-a03a-25a59e5d8e8d_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AddressTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_EntityAddressesAddressTypeAxis_019fde55-12f9-75cd-a03a-25a59e5d8e8d" xlink:to="loc_dei_AddressTypeDomain_019fde55-12f9-75cd-a03a-25a59e5d8e8d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AddressTypeDomain_019fde55-12f9-7d72-96d9-95f816b2c255" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AddressTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_EntityAddressesAddressTypeAxis_019fde55-12f9-75cd-a03a-25a59e5d8e8d" xlink:to="loc_dei_AddressTypeDomain_019fde55-12f9-7d72-96d9-95f816b2c255" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_FormerAddressMember_019fde55-12f9-765f-b8c2-ce75fc651202" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_FormerAddressMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_AddressTypeDomain_019fde55-12f9-7d72-96d9-95f816b2c255" xlink:to="loc_dei_FormerAddressMember_019fde55-12f9-765f-b8c2-ce75fc651202" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019fde55-12f9-7e50-8fca-cc00bfe71c78" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_DocumentType_019fde55-12f9-7e50-8fca-cc00bfe71c78" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019fde55-12f9-745a-a51b-21bfc6f4273a" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_DocumentPeriodEndDate_019fde55-12f9-745a-a51b-21bfc6f4273a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019fde55-12f9-77ad-8100-33c2430f1e35" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_EntityRegistrantName_019fde55-12f9-77ad-8100-33c2430f1e35" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019fde55-12f9-71d2-8063-87b0859fbd5c" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019fde55-12f9-71d2-8063-87b0859fbd5c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019fde55-12f9-79e8-89d7-9f30baa84c14" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_EntityFileNumber_019fde55-12f9-79e8-89d7-9f30baa84c14" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019fde55-12f9-789a-bd4f-9deda4b2abcf" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_EntityTaxIdentificationNumber_019fde55-12f9-789a-bd4f-9deda4b2abcf" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019fde55-12f9-7359-9ff0-e99c2937822d" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_EntityAddressAddressLine1_019fde55-12f9-7359-9ff0-e99c2937822d" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019fde55-12f9-7abe-ba47-7ab5e769f1ff" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_EntityAddressCityOrTown_019fde55-12f9-7abe-ba47-7ab5e769f1ff" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019fde55-12f9-75ac-8a5f-e3028540fde4" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressStateOrProvince"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_EntityAddressStateOrProvince_019fde55-12f9-75ac-8a5f-e3028540fde4" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019fde55-12f9-7017-99ef-867c78f4bb18" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_EntityAddressPostalZipCode_019fde55-12f9-7017-99ef-867c78f4bb18" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019fde55-12f9-748c-9022-ed82a0486e52" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_CityAreaCode_019fde55-12f9-748c-9022-ed82a0486e52" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019fde55-12f9-7d25-8a83-70ba8b3bf0e6" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_LocalPhoneNumber_019fde55-12f9-7d25-8a83-70ba8b3bf0e6" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019fde55-12f9-74ea-a5bc-d79de6631835" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_WrittenCommunications"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_WrittenCommunications_019fde55-12f9-74ea-a5bc-d79de6631835" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019fde55-12f9-715e-9c25-0d510198b701" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SolicitingMaterial"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_SolicitingMaterial_019fde55-12f9-715e-9c25-0d510198b701" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019fde55-12f9-7fa2-8cda-b1d9bd656a8d" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_PreCommencementTenderOffer_019fde55-12f9-7fa2-8cda-b1d9bd656a8d" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019fde55-12f9-7f46-af48-3d40766d8e19" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019fde55-12f9-7f46-af48-3d40766d8e19" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019fde55-12f9-7223-bdb1-bfc1374117e9" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_Security12bTitle_019fde55-12f9-7223-bdb1-bfc1374117e9" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019fde55-12f9-7199-9cc7-10acb810e819" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_TradingSymbol_019fde55-12f9-7199-9cc7-10acb810e819" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019fde55-12f9-7a20-a1af-21e383c968aa" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_SecurityExchangeName_019fde55-12f9-7a20-a1af-21e383c968aa" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019fde55-12f9-7fca-8479-c864c8d4d67b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_EntityEmergingGrowthCompany_019fde55-12f9-7fca-8479-c864c8d4d67b" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019fde55-12f9-7b0c-8737-0e4d905c908d" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_EntityCentralIndexKey_019fde55-12f9-7b0c-8737-0e4d905c908d" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019fde55-12f9-7c8a-b068-37d07d865927" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_AmendmentFlag_019fde55-12f9-7c8a-b068-37d07d865927" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_019fde55-12f9-7bf0-b0a5-08b2cb594ce2" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_019fde55-12f9-7099-8fc8-05c2de365098" xlink:to="loc_dei_CurrentFiscalYearEndDate_019fde55-12f9-7bf0-b0a5-08b2cb594ce2" xlink:type="arc" order="22"/>
  </link:definitionLink>
</link:linkbase>
