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

    <schemaVersion>X0708</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
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        <entityName>Baillie Gifford Institutional Trust</entityName>
        <issuerAddress>
            <street1>780 THIRD AVENUE</street1>
            <street2>43RD FLOOR</street2>
            <city>NEW YORK</city>
            <stateOrCountry>NY</stateOrCountry>
            <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
            <zipCode>10017</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>011-44-131-275-2000</issuerPhoneNumber>
        <jurisdictionOfInc>MASSACHUSETTS</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Business Trust</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2025</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
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            <relatedPersonName>
                <firstName>DAVID</firstName>
                <middleName>W.</middleName>
                <lastName>SALTER</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>C/O BAILLIE GIFFORD INSTITUTIONAL TRUST</street1>
                <street2>780 THIRD AVENUE, 43RD FLOOR</street2>
                <city>NEW YORK</city>
                <stateOrCountry>NY</stateOrCountry>
                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                <zipCode>10017</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>VICE PRESIDENT</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>JULIE</firstName>
                <lastName>PAUL</lastName>
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                <street1>C/O BAILLIE GIFFORD INSTITUTIONAL TRUST</street1>
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                <stateOrCountry>NY</stateOrCountry>
                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                <zipCode>10017</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>VICE PRESIDENT</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>LINDSAY</firstName>
                <lastName>COCKBURN</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
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                <street2>780 THIRD AVENUE, 43RD FLOOR</street2>
                <city>NEW YORK</city>
                <stateOrCountry>NY</stateOrCountry>
                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                <zipCode>10017</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>TREASURER</relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>NEIL</firstName>
                <lastName>RIDDELL</lastName>
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            <relatedPersonAddress>
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                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                <zipCode>10017</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>CHIEF RISK OFFICER</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>GARETH</firstName>
                <lastName>GRIFFITHS</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>C/O BAILLIE GIFFORD INSTITUTIONAL TRUST</street1>
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                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                <zipCode>10017</zipCode>
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            <relatedPersonRelationshipList>
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            <relationshipClarification>SECRETARY, CHIEF LEGAL OFFICER, CHIEF COMPLIANCE OFFICER AND AML COMPLIANCE OFFICER</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>LESLEY-ANNE</firstName>
                <lastName>ARCHIBALD</lastName>
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            <relatedPersonAddress>
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            <relatedPersonRelationshipList>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>KELLY</firstName>
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            <relatedPersonAddress>
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        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>MICHAEL</firstName>
                <lastName>STIRLING-AIRD</lastName>
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                <stateOrCountry>NY</stateOrCountry>
                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
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            </relatedPersonAddress>
            <relatedPersonRelationshipList>
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                <relationship>Director</relationship>
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            <relationshipClarification>TRUSTEE, CHAIR OF THE BOARD AND PRESIDENT</relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
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                <middleName>W.</middleName>
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            <relatedPersonAddress>
                <street1>C/O BAILLIE GIFFORD OVERSEAS LIMITED</street1>
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                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                <zipCode>10017</zipCode>
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            <relatedPersonRelationshipList>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>PAMELA</firstName>
                <middleName>M.J.</middleName>
                <lastName>COX</lastName>
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            <relatedPersonAddress>
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                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                <zipCode>10017</zipCode>
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            <relatedPersonRelationshipList>
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            </relatedPersonRelationshipList>
            <relationshipClarification>TRUSTEE</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>JOHN</firstName>
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            <relatedPersonAddress>
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                <stateOrCountry>NY</stateOrCountry>
                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                <zipCode>10017</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
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            </relatedPersonRelationshipList>
            <relationshipClarification>TRUSTEE</relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>MAUREEN</firstName>
                <middleName>A.</middleName>
                <lastName>MILLER</lastName>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>DONALD</firstName>
                <middleName>P.</middleName>
                <lastName>SULLIVAN JR.</lastName>
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    <offeringData>
        <industryGroup>
            <industryGroupType>Pooled Investment Fund</industryGroupType>
            <investmentFundInfo>
                <investmentFundType>Other Investment Fund</investmentFundType>
                <is40Act>true</is40Act>
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        </industryGroup>
        <issuerSize>
            <aggregateNetAssetValueRange>Decline to Disclose</aggregateNetAssetValueRange>
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        <federalExemptionsExclusions>
            <item>06c</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2026-02-06</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>true</moreThanOneYear>
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        <typesOfSecuritiesOffered>
            <isPooledInvestmentFundType>true</isPooledInvestmentFundType>
            <isOtherType>true</isOtherType>
            <descriptionOfOtherType>BAILLIE GIFFORD INSTITUTIONAL LONG TERM GLOBAL GROWTH FUND SERIES</descriptionOfOtherType>
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        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>BAILLIE GIFFORD FUNDS SERVICES LLC</recipientName>
                <recipientCRDNumber>171147</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>CALTON SQUARE, 1 GREENSIDE ROW</street1>
                    <city>EDINBURGH</city>
                    <stateOrCountry>X0</stateOrCountry>
                    <stateOrCountryDescription>UNITED KINGDOM</stateOrCountryDescription>
                    <zipCode>EH1 3AN</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
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                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>Indefinite</totalOfferingAmount>
            <totalAmountSold>159493799</totalAmountSold>
            <totalRemaining>Indefinite</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>4</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
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            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>Baillie Gifford Institutional Trust</issuerName>
                <signatureName>GARETH GRIFFITHS</signatureName>
                <nameOfSigner>GARETH GRIFFITHS</nameOfSigner>
                <signatureTitle>SECRETARY</signatureTitle>
                <signatureDate>2026-02-20</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
