<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0708</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0002034478</cik>
        <entityName>THL Equity Fund X, L.P.</entityName>
        <issuerAddress>
            <street1>C/O THOMAS H. LEE PARTNERS, L.P.</street1>
            <street2>100 FEDERAL STREET</street2>
            <city>BOSTON</city>
            <stateOrCountry>MA</stateOrCountry>
            <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
            <zipCode>02110</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>617-227-1050</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Limited Partnership</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2024</value>
        </yearOfInc>
    </primaryIssuer>

    <issuerList>
        <issuer>
            <cik>0002034475</cik>
            <entityName>THL Parallel Fund X, L.P.</entityName>
            <issuerAddress>
                <street1>C/O THOMAS H. LEE PARTNERS, L.P.</street1>
                <street2>100 FEDERAL STREET</street2>
                <city>BOSTON</city>
                <stateOrCountry>MA</stateOrCountry>
                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>02110</zipCode>
            </issuerAddress>
            <issuerPhoneNumber>617-227-1050</issuerPhoneNumber>
            <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
            <issuerPreviousNameList>
                <value>None</value>
            </issuerPreviousNameList>
            <edgarPreviousNameList>
                <value>None</value>
            </edgarPreviousNameList>
            <entityType>Limited Partnership</entityType>
            <yearOfInc>
                <withinFiveYears>true</withinFiveYears>
                <value>2024</value>
            </yearOfInc>
        </issuer>
        <issuer>
            <cik>0002034476</cik>
            <entityName>THL (Individuals) Fund X, L.P.</entityName>
            <issuerAddress>
                <street1>C/O THOMAS H. LEE PARTNERS, L.P.</street1>
                <street2>100 FEDERAL STREET</street2>
                <city>BOSTON</city>
                <stateOrCountry>MA</stateOrCountry>
                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>02110</zipCode>
            </issuerAddress>
            <issuerPhoneNumber>617-227-1050</issuerPhoneNumber>
            <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
            <issuerPreviousNameList>
                <value>None</value>
            </issuerPreviousNameList>
            <edgarPreviousNameList>
                <value>None</value>
            </edgarPreviousNameList>
            <entityType>Limited Partnership</entityType>
            <yearOfInc>
                <withinFiveYears>true</withinFiveYears>
                <value>2024</value>
            </yearOfInc>
        </issuer>
        <issuer>
            <cik>0002034477</cik>
            <entityName>THL Executive Fund X, L.P.</entityName>
            <issuerAddress>
                <street1>C/O THOMAS H. LEE PARTNERS, L.P.</street1>
                <street2>100 FEDERAL STREET</street2>
                <city>BOSTON</city>
                <stateOrCountry>MA</stateOrCountry>
                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>02110</zipCode>
            </issuerAddress>
            <issuerPhoneNumber>617-227-1050</issuerPhoneNumber>
            <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
            <issuerPreviousNameList>
                <value>None</value>
            </issuerPreviousNameList>
            <edgarPreviousNameList>
                <value>None</value>
            </edgarPreviousNameList>
            <entityType>Limited Partnership</entityType>
            <yearOfInc>
                <withinFiveYears>true</withinFiveYears>
                <value>2024</value>
            </yearOfInc>
        </issuer>
    </issuerList>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>JOSH</firstName>
                <middleName>M.</middleName>
                <lastName>NELSON</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>C/O THOMAS H. LEE PARTNERS, L.P.</street1>
                <street2>100 FEDERAL STREET</street2>
                <city>BOSTON</city>
                <stateOrCountry>MA</stateOrCountry>
                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>02110</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>SCOTT</firstName>
                <middleName>M.</middleName>
                <lastName>SPERLING</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>C/O THOMAS H. LEE PARTNERS, L.P.</street1>
                <street2>100 FEDERAL STREET</street2>
                <city>BOSTON</city>
                <stateOrCountry>MA</stateOrCountry>
                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>02110</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>TODD</firstName>
                <middleName>M.</middleName>
                <lastName>ABBRECHT</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>C/O THOMAS H. LEE PARTNERS, L.P.</street1>
                <street2>100 FEDERAL STREET</street2>
                <city>BOSTON</city>
                <stateOrCountry>MA</stateOrCountry>
                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>02110</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>GNANESHWAR</firstName>
                <middleName>B.</middleName>
                <lastName>RAO</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>C/O THOMAS H. LEE PARTNERS, L.P.</street1>
                <street2>100 FEDERAL STREET</street2>
                <city>BOSTON</city>
                <stateOrCountry>MA</stateOrCountry>
                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>02110</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>JAMES</firstName>
                <middleName>C.</middleName>
                <lastName>CARLISLE</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>C/O THOMAS H. LEE PARTNERS, L.P.</street1>
                <street2>100 FEDERAL STREET</street2>
                <city>BOSTON</city>
                <stateOrCountry>MA</stateOrCountry>
                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>02110</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>DANIEL</firstName>
                <middleName>G.</middleName>
                <lastName>JONES</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>C/O THOMAS H. LEE PARTNERS, L.P.</street1>
                <street2>100 FEDERAL STREET</street2>
                <city>BOSTON</city>
                <stateOrCountry>MA</stateOrCountry>
                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>02110</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Pooled Investment Fund</industryGroupType>
            <investmentFundInfo>
                <investmentFundType>Private Equity Fund</investmentFundType>
                <is40Act>false</is40Act>
            </investmentFundInfo>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06c</item>
            <item>3C</item>
            <item>3C.7</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>0002034478-25-000001</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2024-10-29</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>true</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isPooledInvestmentFundType>true</isPooledInvestmentFundType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>REDE PARTNERS (AMERICAS) LLC</recipientName>
                <recipientCRDNumber>299631</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>1270 AVENUE OF THE AMERICAS</street1>
                    <street2>SUITE 408</street2>
                    <city>NEW YORK</city>
                    <stateOrCountry>NY</stateOrCountry>
                    <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                    <zipCode>10020</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <value>All States</value>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
            <recipient>
                <recipientName>KRONSTEIN ALTERNATIVE INVESTMENT ADVISORS GMBH</recipientName>
                <recipientCRDNumber>None</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>BROMBERGSTRASSE 17A</street1>
                    <city>FREIBURG IM BREISGAU</city>
                    <stateOrCountry>2M</stateOrCountry>
                    <stateOrCountryDescription>GERMANY</stateOrCountryDescription>
                    <zipCode>D- 79102</zipCode>
                </recipientAddress>
                <statesOfSolicitationList></statesOfSolicitationList>
                <foreignSolicitation>true</foreignSolicitation>
            </recipient>
            <recipient>
                <recipientName>FUND PLACEMENT ISRAEL LTD.</recipientName>
                <recipientCRDNumber>None</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>7 HASADOT</street1>
                    <city>RAMAT HASHARON</city>
                    <stateOrCountry>L3</stateOrCountry>
                    <stateOrCountryDescription>ISRAEL</stateOrCountryDescription>
                    <zipCode>4704351</zipCode>
                </recipientAddress>
                <statesOfSolicitationList></statesOfSolicitationList>
                <foreignSolicitation>true</foreignSolicitation>
            </recipient>
            <recipient>
                <recipientName>TRINITY GROUP LIMITED</recipientName>
                <recipientCRDNumber>None</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>THE STANLEY BUILDING</street1>
                    <street2>7 PANCRAS SQUARE</street2>
                    <city>LONDON</city>
                    <stateOrCountry>X0</stateOrCountry>
                    <stateOrCountryDescription>UNITED KINGDOM</stateOrCountryDescription>
                    <zipCode>N1C 4AG</zipCode>
                </recipientAddress>
                <statesOfSolicitationList></statesOfSolicitationList>
                <foreignSolicitation>true</foreignSolicitation>
            </recipient>
            <recipient>
                <recipientName>CITI PRIVATE ALTERNATIVES, LLC</recipientName>
                <recipientCRDNumber>153777</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>388 GREENWICH STREET</street1>
                    <street2>29TH FLOOR</street2>
                    <city>NEW YORK</city>
                    <stateOrCountry>NY</stateOrCountry>
                    <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                    <zipCode>10013</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <value>All States</value>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
            <recipient>
                <recipientName>FINEX HONG KONG LIMITED</recipientName>
                <recipientCRDNumber>None</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>UNIT 2005-06, 20/F, 88WL</street1>
                    <street2>88 WING LOK STREET, SHEUNG WAN</street2>
                    <city>HONG KONG</city>
                    <stateOrCountry>K3</stateOrCountry>
                    <stateOrCountryDescription>HONG KONG</stateOrCountryDescription>
                    <zipCode>00000</zipCode>
                </recipientAddress>
                <statesOfSolicitationList></statesOfSolicitationList>
                <foreignSolicitation>true</foreignSolicitation>
            </recipient>
            <recipient>
                <recipientName>JO ADVISORS UK LTD</recipientName>
                <recipientCRDNumber>None</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>REAR OF 17 PLANTAGENET ROAD</street1>
                    <city>BARNET</city>
                    <stateOrCountry>X0</stateOrCountry>
                    <stateOrCountryDescription>UNITED KINGDOM</stateOrCountryDescription>
                    <zipCode>EN5 5JG</zipCode>
                </recipientAddress>
                <statesOfSolicitationList></statesOfSolicitationList>
                <foreignSolicitation>true</foreignSolicitation>
            </recipient>
        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>6009956634</totalOfferingAmount>
            <totalAmountSold>6009956634</totalAmountSold>
            <totalRemaining>0</totalRemaining>
            <clarificationOfResponse>TOTAL AMOUNT OF INVESTABLE CAPITAL TO THL FUND X AND ITS RELATED INVESTMENT VEHICLES IS $6.35 BILLION.</clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>274</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>14782972</dollarAmount>
                <isEstimate>true</isEstimate>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse>THE FUNDS ARE REQUIRED TO PAY A SUCCESS FEE BASED ON THE AGGREGATE CAPITAL COMMITMENTS OF CERTAIN INVESTORS IN THE FUNDS, PLUS CERTAIN REIMBURSABLE EXPENSES OF THE PLACEMENT AGENTS.</clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>THL Equity Fund X, L.P.</issuerName>
                <signatureName>JEFFREY R. SCHECHTER</signatureName>
                <nameOfSigner>JEFFREY R. SCHECHTER</nameOfSigner>
                <signatureTitle>CHIEF FINANCIAL OFFICER</signatureTitle>
                <signatureDate>2026-08-20</signatureDate>
            </signature>
            <signature>
                <issuerName>THL Parallel Fund X, L.P.</issuerName>
                <signatureName>JEFFREY R. SCHECHTER</signatureName>
                <nameOfSigner>JEFFREY R. SCHECHTER</nameOfSigner>
                <signatureTitle>CHIEF FINANCIAL OFFICER</signatureTitle>
                <signatureDate>2026-08-20</signatureDate>
            </signature>
            <signature>
                <issuerName>THL (Individuals) Fund X, L.P.</issuerName>
                <signatureName>JEFFREY R. SCHECHTER</signatureName>
                <nameOfSigner>JEFFREY R. SCHECHTER</nameOfSigner>
                <signatureTitle>CHIEF FINANCIAL OFFICER</signatureTitle>
                <signatureDate>2026-08-20</signatureDate>
            </signature>
            <signature>
                <issuerName>THL Executive Fund X, L.P.</issuerName>
                <signatureName>JEFFREY R. SCHECHTER</signatureName>
                <nameOfSigner>JEFFREY R. SCHECHTER</nameOfSigner>
                <signatureTitle>CHIEF FINANCIAL OFFICER</signatureTitle>
                <signatureDate>2026-08-20</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
