<?xml version="1.0"?>
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    <schemaVersion>X0708</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0002054559</cik>
        <entityName>2946 VENTURES FUND I, LLLP</entityName>
        <issuerAddress>
            <street1>11650 NW OAKTREE DRIVE</street1>
            <city>GRIMES</city>
            <stateOrCountry>IA</stateOrCountry>
            <stateOrCountryDescription>IOWA</stateOrCountryDescription>
            <zipCode>50111</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>515-988-7901</issuerPhoneNumber>
        <jurisdictionOfInc>IOWA</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Other</entityType>
        <entityTypeOtherDesc>Limited Liability Limited Partnership</entityTypeOtherDesc>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2024</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>TEJ</firstName>
                <middleName>K.</middleName>
                <lastName>DHAWAN</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>11650 NW OAKTREE DRIVE</street1>
                <city>GRIMES</city>
                <stateOrCountry>IA</stateOrCountry>
                <stateOrCountryDescription>IOWA</stateOrCountryDescription>
                <zipCode>50111</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>PRESIDENT</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>ANDREW</firstName>
                <lastName>KIRPALANI</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1404 LEWIS AVENUE</street1>
                <city>DES MOINES</city>
                <stateOrCountry>IA</stateOrCountry>
                <stateOrCountryDescription>IOWA</stateOrCountryDescription>
                <zipCode>50315-3317</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>VICE PRESIDENT</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>NA</firstName>
                <middleName>NA</middleName>
                <lastName>2946 VENTURES GP, LLC</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>11650 NW OAKTREE DRIVE</street1>
                <city>GRIMES</city>
                <stateOrCountry>IA</stateOrCountry>
                <stateOrCountryDescription>IOWA</stateOrCountryDescription>
                <zipCode>50111</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>MANAGER OF ISSUER</relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Pooled Investment Fund</industryGroupType>
            <investmentFundInfo>
                <investmentFundType>Venture Capital Fund</investmentFundType>
                <is40Act>false</is40Act>
            </investmentFundInfo>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06b</item>
            <item>3C</item>
            <item>3C.1</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>0002054559-25-000001</previousAccessionNumber>
            </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>50000</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>20000000</totalOfferingAmount>
            <totalAmountSold>0</totalAmountSold>
            <totalRemaining>20000000</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>0</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>400000</dollarAmount>
                <isEstimate>true</isEstimate>
            </grossProceedsUsed>
            <clarificationOfResponse>ESTIMATED AMOUNT OF THE MANAGEMENT FEE OVER THE TERM OF EXISTENCE OF THE ISSUER.</clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>2946 VENTURES FUND I, LLLP</issuerName>
                <signatureName>/s/ Tej K. Dhawan</signatureName>
                <nameOfSigner>TEJ K. DHAWAN</nameOfSigner>
                <signatureTitle>PRESIDENT</signatureTitle>
                <signatureDate>2026-04-01</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
