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        <entityName>Genius Ventures Founding Fund I, LP</entityName>
        <issuerAddress>
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            <street2>16 PRESTON ROAD</street2>
            <city>WOODSIDE</city>
            <stateOrCountry>CA</stateOrCountry>
            <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
            <zipCode>94062</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>650-996-5258</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
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        <edgarPreviousNameList>
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                <lastName>Genius Ventures Founding Fund I GP, LLC</lastName>
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                <city>Woodside</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>94062</zipCode>
            </relatedPersonAddress>
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            <relationshipClarification>General Partner of the Issuer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Benjamin</firstName>
                <lastName>Taft</lastName>
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                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>94062</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
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            <investmentFundInfo>
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                <is40Act>false</is40Act>
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        </industryGroup>
        <issuerSize>
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            <item>3C</item>
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                <previousAccessionNumber>0002002515-25-000001</previousAccessionNumber>
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            <dateOfFirstSale>
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            </dateOfFirstSale>
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        <durationOfOffering>
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        </durationOfOffering>
        <typesOfSecuritiesOffered>
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            <isOtherType>true</isOtherType>
            <descriptionOfOtherType>Limited Partnership Interests</descriptionOfOtherType>
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        <businessCombinationTransaction>
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            <clarificationOfResponse></clarificationOfResponse>
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        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
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            <totalAmountSold>34475000</totalAmountSold>
            <totalRemaining>0</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
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        <investors>
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            <totalNumberAlreadyInvested>55</totalNumberAlreadyInvested>
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        <salesCommissionsFindersFees>
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            <clarificationOfResponse></clarificationOfResponse>
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        <signatureBlock>
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            <signature>
                <issuerName>Genius Ventures Founding Fund I, LP</issuerName>
                <signatureName>/s/Benjamin Taft</signatureName>
                <nameOfSigner>Benjamin Taft</nameOfSigner>
                <signatureTitle>Managing Member of the General Partner of the Issuer</signatureTitle>
                <signatureDate>2025-09-11</signatureDate>
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