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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-11-18</periodOfReport>

    <issuer>
        <issuerCik>0001852736</issuerCik>
        <issuerName>Tristar Acquisition I Corp.</issuerName>
        <issuerTradingSymbol>TRIS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001199668</rptOwnerCik>
            <rptOwnerName>ROGERS STEVEN G</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TRISTAR ACQUISITION I CORP.</rptOwnerStreet1>
            <rptOwnerStreet2>2870 PEACHTREE RD NW, SUITE 509</rptOwnerStreet2>
            <rptOwnerCity>ATLANTA</rptOwnerCity>
            <rptOwnerState>2Q</rptOwnerState>
            <rptOwnerZipCode>30305</rptOwnerZipCode>
            <rptOwnerStateDescription>GEORGIA (COUNTRY)</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Class B ordinary shares</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-11-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>25000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>11.50</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A ordinary shares</value>
                    <footnoteId id="F2"/>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>25000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>25000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">These shares of Class B ordinary shares are subject to potential forfeiture and transfer restrictions by and between the Reporting Person and Tristar Holdings I LLC (&quot;Sponsor&quot;) pursuant to a Founder Share Purchase Agreement dated November 18, 2021.</footnote>
        <footnote id="F2">These Class B ordinary shares will automatically convert into Class A ordinary shares on a one-for-one basis for no additional consideration concurrently with or immediately following the consummation of the initial business combination by the Issuer, on a one-for-one basis, subject to the adjustments described in the Issuer's prospectus on Form S-1 filed on October 14, 2021 (the &quot;Prospectus&quot;). The Class B ordinary shares have no expiration date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By Steven Rogers</signatureName>
        <signatureDate>2021-11-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
