-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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MIC-Info: RSA-MD5,RSA,
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 9Mydn3THsVfF6yn5gp04vw==

<SEC-DOCUMENT>0001260996-10-000001.txt : 20100115
<SEC-HEADER>0001260996-10-000001.hdr.sgml : 20100115
<ACCEPTANCE-DATETIME>20100115120951
ACCESSION NUMBER:		0001260996-10-000001
CONFORMED SUBMISSION TYPE:	D
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
FILED AS OF DATE:		20100115
DATE AS OF CHANGE:		20100115
EFFECTIVENESS DATE:		20100115

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AMERICAN DEFENSE SYSTEMS INC
		CENTRAL INDEX KEY:			0001260996
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS TRANSPORTATION EQUIPMENT [3790]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		D
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-58051
		FILM NUMBER:		10529505

	BUSINESS ADDRESS:	
		STREET 1:		230 DUFFY AVENUE
		CITY:			HICKSVILLE
		STATE:			NY
		ZIP:			11801
		BUSINESS PHONE:		516-390-5300

	MAIL ADDRESS:	
		STREET 1:		230 DUFFY AVENUE
		CITY:			HICKSVILLE
		STATE:			NY
		ZIP:			11801
</SEC-HEADER>
<DOCUMENT>
<TYPE>D
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0603</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001260996</cik>
        <entityName>AMERICAN DEFENSE SYSTEMS INC</entityName>
        <issuerAddress>
            <street1>230 DUFFY AVENUE</street1>
            <city>HICKSVILLE</city>
            <stateOrCountry>NY</stateOrCountry>
            <zipCode>11801</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>516-390-5300</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Anthony</firstName>
                <middleName>J.</middleName>
                <lastName>Piscitelli</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>230 Duffy Avenue</street1>
                <city>Hicksville</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>11801</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Gary</firstName>
                <lastName>Sidorsky</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>230 Duffy Avenue</street1>
                <city>Hicksville</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>11801</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Fergal</firstName>
                <lastName>Foley</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>230 Duffy Avenue</street1>
                <city>Hicksville</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>11801</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Curtis</firstName>
                <middleName>M.</middleName>
                <lastName>Taufman</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>230 Duffy Avenue</street1>
                <city>Hicksville</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>11801</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Victor</firstName>
                <lastName>La Sala</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>230 Duffy Avenue</street1>
                <city>Hicksville</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>11801</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Charles</firstName>
                <lastName>Pegg</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>230 Duffy Avenue</street1>
                <city>Hicksville</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>11801</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Russell</firstName>
                <lastName>Scales</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>230 Duffy Avenue</street1>
                <city>Hicksville</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>11801</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Robert</firstName>
                <lastName>Aldrich</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>230 Duffy Avenue</street1>
                <city>Hicksville</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>11801</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Richard</firstName>
                <middleName>P.</middleName>
                <lastName>Torykian</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>56 Arrandale Road</street1>
                <city>Rockville Centre</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>11570</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Alfred</firstName>
                <middleName>M.</middleName>
                <lastName>Gray</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>6317 Chancer View Circle</street1>
                <city>Alexandria</city>
                <stateOrCountry>VA</stateOrCountry>
                <zipCode>22304</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Stephen</firstName>
                <middleName>R.</middleName>
                <lastName>Seiter</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o American Defense Systems, Inc.</street1>
                <street2>230 Duffy Avenue</street2>
                <city>Hicksville</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>11801</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Victor</firstName>
                <lastName>Trizzino</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>25 Wayne Court</street1>
                <city>Northport</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>11768</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Pasquale</firstName>
                <middleName>J.</middleName>
                <lastName>D'Amuro</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Giuliani Security and Safety</street1>
                <street2>5 Times Square</street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10036</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Manufacturing</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2009-12-31</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>Indefinite</totalOfferingAmount>
            <totalAmountSold>0</totalAmountSold>
            <totalRemaining>Indefinite</totalRemaining>
            <clarificationOfResponse>Pursuant to the terms of the Issuer's Series A Convertible Preferred Stock, it issued a total of 1,080,000 shares of common stock to its Preferred Stockholders as payment of the 12/31/09 quarterly dividends on the preferred stock.</clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>2</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>AMERICAN DEFENSE SYSTEMS INC</issuerName>
                <signatureName>/s/ Gary Sidorsky</signatureName>
                <nameOfSigner>Gary Sidorsky</nameOfSigner>
                <signatureTitle>Chief Financial Officer</signatureTitle>
                <signatureDate>2010-01-11</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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