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

    <schemaVersion>X0708</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001849612</cik>
        <entityName>Insight Partners (EU) XII, S.C.Sp.</entityName>
        <issuerAddress>
            <street1>15, BOULEVARD F.W. RAIFFEISEN</street1>
            <city>LUXEMBOURG</city>
            <stateOrCountry>N4</stateOrCountry>
            <stateOrCountryDescription>LUXEMBOURG</stateOrCountryDescription>
            <zipCode>L-2411</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>(212) 230-9200</issuerPhoneNumber>
        <jurisdictionOfInc>LUXEMBOURG</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Other</entityType>
        <entityTypeOtherDesc>A Luxembourg special limited
partnership</entityTypeOtherDesc>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2021</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Jeffrey</firstName>
                <lastName>Horing</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Insight Venture Management, LLC</street1>
                <street2>1114 Avenue of the Americas, 36th Floor</street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                <zipCode>10036</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Manager and Authorized Officer of the general partner of the issuer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Kathleen</firstName>
                <lastName>Becker</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>15, Boulevard F.W. Raiffeisen</street1>
                <city>Luxembourg</city>
                <stateOrCountry>N4</stateOrCountry>
                <stateOrCountryDescription>LUXEMBOURG</stateOrCountryDescription>
                <zipCode>L-2411</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Manager and Authorized Officer of the general partner of the issuer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Mark</firstName>
                <lastName>Lessing</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Insight Venture Management, LLC</street1>
                <street2>1114 Avenue of the Americas, 36th Floor</street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                <zipCode>10036</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Manager and Authorized Officer of the general partner of the issuer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Emmanuel</firstName>
                <lastName>Mougeolle</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>15, Boulevard F.W. Raiffeisen</street1>
                <city>Luxembourg</city>
                <stateOrCountry>N4</stateOrCountry>
                <stateOrCountryDescription>LUXEMBOURG</stateOrCountryDescription>
                <zipCode>L-2411</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Manager of the general partner of the issuer</relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Pooled Investment Fund</industryGroupType>
            <investmentFundInfo>
                <investmentFundType>Private Equity Fund</investmentFundType>
                <is40Act>false</is40Act>
            </investmentFundInfo>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06b</item>
            <item>3C</item>
            <item>3C.7</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <yetToOccur>true</yetToOccur>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
            <isPooledInvestmentFundType>true</isPooledInvestmentFundType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>Warren H. Spar</recipientName>
                <recipientCRDNumber>2357369</recipientCRDNumber>
                <associatedBDName>Sparring Partners Capital LLC</associatedBDName>
                <associatedBDCRDNumber>133780</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>420 Lexington Avenue, Suite 2458</street1>
                    <city>New York</city>
                    <stateOrCountry>NY</stateOrCountry>
                    <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                    <zipCode>10170</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <state>NJ</state>
                    <description>NEW JERSEY</description>
                    <state>NY</state>
                    <description>NEW YORK</description>
                    <state>PA</state>
                    <description>PENNSYLVANIA</description>
                    <state>UT</state>
                    <description>UTAH</description>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
            <recipient>
                <recipientName>Magenta Capital Services Ltd.</recipientName>
                <recipientCRDNumber>None</recipientCRDNumber>
                <associatedBDName>Magenta Capital Services Ltd.</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>VICTORIA HOUSE</street1>
                    <street2>THE VALLEY</street2>
                    <city>ANGUILLA</city>
                    <stateOrCountry>D8</stateOrCountry>
                    <stateOrCountryDescription>VIRGIN ISLANDS, BRITISH</stateOrCountryDescription>
                    <zipCode>00000</zipCode>
                </recipientAddress>
                <statesOfSolicitationList></statesOfSolicitationList>
                <foreignSolicitation>true</foreignSolicitation>
            </recipient>
            <recipient>
                <recipientName>Evercore Group L.L.C.</recipientName>
                <recipientCRDNumber>42405</recipientCRDNumber>
                <associatedBDName>Evercore Group L.L.C.</associatedBDName>
                <associatedBDCRDNumber>42405</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>55 East 52nd Street</street1>
                    <city>New York</city>
                    <stateOrCountry>NY</stateOrCountry>
                    <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                    <zipCode>10055</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <state>AL</state>
                    <description>ALABAMA</description>
                    <state>AK</state>
                    <description>ALASKA</description>
                    <state>AZ</state>
                    <description>ARIZONA</description>
                    <state>AR</state>
                    <description>ARKANSAS</description>
                    <state>CA</state>
                    <description>CALIFORNIA</description>
                    <state>CO</state>
                    <description>COLORADO</description>
                    <state>CT</state>
                    <description>CONNECTICUT</description>
                    <state>DE</state>
                    <description>DELAWARE</description>
                    <state>DC</state>
                    <description>DISTRICT OF COLUMBIA</description>
                    <state>FL</state>
                    <description>FLORIDA</description>
                    <state>GA</state>
                    <description>GEORGIA</description>
                    <state>ID</state>
                    <description>IDAHO</description>
                    <state>IL</state>
                    <description>ILLINOIS</description>
                    <state>IA</state>
                    <description>IOWA</description>
                    <state>KY</state>
                    <description>KENTUCKY</description>
                    <state>LA</state>
                    <description>LOUISIANA</description>
                    <state>MA</state>
                    <description>MASSACHUSETTS</description>
                    <state>MS</state>
                    <description>MISSISSIPPI</description>
                    <state>MT</state>
                    <description>MONTANA</description>
                    <state>NJ</state>
                    <description>NEW JERSEY</description>
                    <state>NY</state>
                    <description>NEW YORK</description>
                    <state>NC</state>
                    <description>NORTH CAROLINA</description>
                    <state>OH</state>
                    <description>OHIO</description>
                    <state>OK</state>
                    <description>OKLAHOMA</description>
                    <state>OR</state>
                    <description>OREGON</description>
                    <state>PA</state>
                    <description>PENNSYLVANIA</description>
                    <state>PR</state>
                    <description>PUERTO RICO</description>
                    <state>RI</state>
                    <description>RHODE ISLAND</description>
                    <state>TX</state>
                    <description>TEXAS</description>
                    <state>UT</state>
                    <description>UTAH</description>
                    <state>VA</state>
                    <description>VIRGINIA</description>
                    <state>WA</state>
                    <description>WASHINGTON</description>
                    <state>WV</state>
                    <description>WEST VIRGINIA</description>
                </statesOfSolicitationList>
                <foreignSolicitation>true</foreignSolicitation>
            </recipient>
            <recipient>
                <recipientName>Mitsubishi: UFJ Alternative Investments Co., Ltd</recipientName>
                <recipientCRDNumber>None</recipientCRDNumber>
                <associatedBDName>Mitsubishi: UFJ Alternative Investments Co., Ltd</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>Hibiya Parkfront Bldg. 7F, 1-6</street1>
                    <street2>Uchisaiwaicho 2-Chome, Chiyoda-Ku</street2>
                    <city>Tokyo</city>
                    <stateOrCountry>M0</stateOrCountry>
                    <stateOrCountryDescription>JAPAN</stateOrCountryDescription>
                    <zipCode>100-0011</zipCode>
                </recipientAddress>
                <statesOfSolicitationList></statesOfSolicitationList>
                <foreignSolicitation>true</foreignSolicitation>
            </recipient>
            <recipient>
                <recipientName>HMC ITAJUBA</recipientName>
                <recipientCRDNumber>None</recipientCRDNumber>
                <associatedBDName>HMC ITAJUBA</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>Av. Nueva Costanera 4040</street1>
                    <street2>3rd floor, N 32,Vitacura</street2>
                    <city>Santiago</city>
                    <stateOrCountry>F3</stateOrCountry>
                    <stateOrCountryDescription>CHILE</stateOrCountryDescription>
                    <zipCode>00000</zipCode>
                </recipientAddress>
                <statesOfSolicitationList></statesOfSolicitationList>
                <foreignSolicitation>true</foreignSolicitation>
            </recipient>
            <recipient>
                <recipientName>David Choi</recipientName>
                <recipientCRDNumber>2277222</recipientCRDNumber>
                <associatedBDName>Sparring Partners Capital LLC</associatedBDName>
                <associatedBDCRDNumber>133780</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>420 Lexington Avenue, Suite 2458</street1>
                    <city>New York</city>
                    <stateOrCountry>NY</stateOrCountry>
                    <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                    <zipCode>10170</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <state>MT</state>
                    <description>MONTANA</description>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>Indefinite</totalOfferingAmount>
            <totalAmountSold>0</totalAmountSold>
            <totalRemaining>Indefinite</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>0</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>20000000</dollarAmount>
                <isEstimate>true</isEstimate>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse>The commission estimate includes amounts that may be payable in the next 12 months in connection with sales of interests in this Issuer and for the Issuer's parallel funds if specified amounts are invested.</clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>Insight Partners (EU) XII, S.C.Sp.</issuerName>
                <signatureName>Mark Lessing</signatureName>
                <nameOfSigner>Mark Lessing</nameOfSigner>
                <signatureTitle>See Item #3 above for Title</signatureTitle>
                <signatureDate>2021-04-28</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>