<SUBMISSION>
<ACCESSION-NUMBER>0001140361-05-004048
<TYPE>3
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20050520
<FILING-DATE>20050526
<DATE-OF-FILING-DATE-CHANGE>20050526
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>CENUCO INC
<CIK>0000843494
<ASSIGNED-SIC>4899
<IRS-NUMBER>752228820
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>0228
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>6421 CONGRESS AVENUE
<STREET2>STE 201
<CITY>BOCA RATON
<STATE>FL
<ZIP>33487
<PHONE>5619944446
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>6421 CONGRESS AVENUE
<STREET2>STE 201
<CITY>BOCA RATON
<STATE>FL
<ZIP>33487
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>VIRTUAL ACADEMICS COM INC
<DATE-CHANGED>20000110
</FORMER-COMPANY>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>DONNEBROOKE CORP
<DATE-CHANGED>19920703
</FORMER-COMPANY>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>ALLURISTICS INC
<DATE-CHANGED>19890911
</FORMER-COMPANY>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>Ziegler Francis G
<CIK>0001328430
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>3
<ACT>34
<FILE-NUMBER>001-32187
<FILM-NUMBER>05860086
</FILING-VALUES>
<BUSINESS-ADDRESS>
<PHONE>908-953-0405
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>100 ROEBLING ROAD
<CITY>BERNARDSVILLE
<STATE>NJ
<ZIP>07924
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2005-05-20</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000843494</issuerCik>
        <issuerName>CENUCO INC</issuerName>
        <issuerTradingSymbol>ICU</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001328430</rptOwnerCik>
            <rptOwnerName>Ziegler Francis G</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>100 ROEBLING ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BERNARDSVILLE</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07924</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Francis G. Ziegler</signatureName>
        <signatureDate>2005-05-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
