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

    <schemaVersion>X0708</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0002054634</cik>
        <entityName>StoneRiver Investment Fund III-A, L.P.</entityName>
        <issuerAddress>
            <street1>2151 HIGHLAND AVENUE SOUTH</street1>
            <street2>SUITE 200</street2>
            <city>BIRMINGHAM</city>
            <stateOrCountry>AL</stateOrCountry>
            <stateOrCountryDescription>ALABAMA</stateOrCountryDescription>
            <zipCode>35205</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>2057257231</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <edgarPreviousNameList>
            <previousName>StoneRiver Investment Fund III - A, L.P.</previousName>
        </edgarPreviousNameList>
        <entityType>Limited Partnership</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2023</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>StoneRiver Investment Fund III GP,</firstName>
                <lastName>LLC</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2151 Highland Avenue South</street1>
                <street2>Suite 200</street2>
                <city>Birmingham</city>
                <stateOrCountry>AL</stateOrCountry>
                <stateOrCountryDescription>ALABAMA</stateOrCountryDescription>
                <zipCode>35205</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>General Partner of the Issuer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Benny</firstName>
                <lastName>LaRussa, Jr.</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2151 Highland Avenue South</street1>
                <street2>Suite 200</street2>
                <city>Birmingham</city>
                <stateOrCountry>AL</stateOrCountry>
                <stateOrCountryDescription>ALABAMA</stateOrCountryDescription>
                <zipCode>35205</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Manager, Chairman and CEO of StoneRiver Company, LLC, the Manager of the Issuer's General Partner</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Joseph</firstName>
                <lastName>Welden, III</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2151 Highland Avenue South</street1>
                <street2>Suite 200</street2>
                <city>Birmingham</city>
                <stateOrCountry>AL</stateOrCountry>
                <stateOrCountryDescription>ALABAMA</stateOrCountryDescription>
                <zipCode>35205</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Manager, President and CIO of StoneRiver Company, LLC, the Manager of the Issuer's General Partner</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Colin</firstName>
                <lastName>Moorhouse</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2151 Highland Avenue South</street1>
                <street2>Suite 200</street2>
                <city>Birmingham</city>
                <stateOrCountry>AL</stateOrCountry>
                <stateOrCountryDescription>ALABAMA</stateOrCountryDescription>
                <zipCode>35205</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Manager, SVP and General Counsel of StoneRiver Company, LLC, the Manager of the Issuer's General Partner</relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Pooled Investment Fund</industryGroupType>
            <investmentFundInfo>
                <investmentFundType>Other Investment Fund</investmentFundType>
                <is40Act>false</is40Act>
            </investmentFundInfo>
        </industryGroup>
        <issuerSize>
            <aggregateNetAssetValueRange>Decline to Disclose</aggregateNetAssetValueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06b</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <yetToOccur>true</yetToOccur>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>true</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
            <isPooledInvestmentFundType>true</isPooledInvestmentFundType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>Lynx Capital, LLC</recipientName>
                <recipientCRDNumber>137178</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>55 Parson Brown Ct.</street1>
                    <city>Moraga</city>
                    <stateOrCountry>CA</stateOrCountry>
                    <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                    <zipCode>94556</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <value>All States</value>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>300000000</totalOfferingAmount>
            <totalAmountSold>0</totalAmountSold>
            <totalRemaining>300000000</totalRemaining>
            <clarificationOfResponse>The total offering amount is the aggregate total offering amount of the Issuer together with StoneRiver Investment Fund III, L.P., an affiliate of the Issuer.</clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>0</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
                <isEstimate>true</isEstimate>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
                <isEstimate>true</isEstimate>
            </findersFees>
            <clarificationOfResponse>The Issuer has entered into a placement agent agreement with the person named in Item 12, under which terms such person will receive sales commissions based on the amount of approved sales. Such amounts are unknown at this time.</clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
                <isEstimate>true</isEstimate>
            </grossProceedsUsed>
            <clarificationOfResponse>The General Partner and other affiliates of the Issuer will receive customary fees as set forth in the Issuer's Amended and Restated Agreement of Limited Partnership.</clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>StoneRiver Investment Fund III-A, L.P.</issuerName>
                <signatureName>Colin Moorhouse</signatureName>
                <nameOfSigner>Colin Moorhouse</nameOfSigner>
                <signatureTitle>Manager of the Issuer's General Partner's Manager</signatureTitle>
                <signatureDate>2025-02-20</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
