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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 PNzFLMiwOf3EBDS4ul2rvti5sbPsNBsPmejMwXmwsdkswaPXjFo81N7Zw8EO/jfO
 LuqzenVNNUDUbKoi7ChAOg==

<SEC-DOCUMENT>0001181431-03-020153.txt : 20030822
<SEC-HEADER>0001181431-03-020153.hdr.sgml : 20030822
<ACCEPTANCE-DATETIME>20030822200004
ACCESSION NUMBER:		0001181431-03-020153
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030820
FILED AS OF DATE:		20030822

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			VAUGHAN WALTER W
		CENTRAL INDEX KEY:			0001183796

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-49604
		FILM NUMBER:		03863390

	MAIL ADDRESS:	
		STREET 1:		C/O MANTECH INTERNATIONAL CORP
		STREET 2:		12015 LEE JACKSON HIGHWAY
		CITY:			FAIRFAX
		STATE:			VA
		ZIP:			22033

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MANTECH INTERNATIONAL CORP
		CENTRAL INDEX KEY:			0000892537
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MANAGEMENT SERVICES [8741]
		IRS NUMBER:				221852179
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		12015 LEE JACKSON MEMORIAL HIGHWAY
		CITY:			FAIRFAX
		STATE:			VA
		ZIP:			22033-3300
		BUSINESS PHONE:		703-218-6000

	MAIL ADDRESS:	
		STREET 1:		12015 LEE JACKSON MEMORIAL HIGHWAY
		CITY:			FAIRFAX
		STATE:			VA
		ZIP:			22033-3300
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>rrd16874.xml
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4/A</documentType><periodOfReport>2003-08-20</periodOfReport><dateOfOriginalSubmission>2003-08-22</dateOfOriginalSubmission><notSubjectToSection16>1</notSubjectToSection16>
    <issuer>
        <issuerCik>0000892537</issuerCik>
        <issuerName>MANTECH INTERNATIONAL CORP</issuerName>
        <issuerTradingSymbol>MANT</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001183796</rptOwnerCik>
            <rptOwnerName>VAUGHAN WALTER W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MANTECH INTERNATIONAL CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>12015 LEE JACKSON HIGHWAY</rptOwnerStreet2>
            <rptOwnerCity>FAIRFAX</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>22033</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>1</isOther><otherText>Retired Director</otherText></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Class A Common Stock</value></securityTitle><transactionDate><value>2003-08-20</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>100</value></transactionShares><transactionPricePerShare><value>23.3</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value><footnoteId id="F1"/></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>9900</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnershi
p><natureOfOwnership><value>By IRA</value></natureOfOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><footnotes><footnote id="F1">This sale was previously erroneously reported as an acquisition when should have indicated it was a disposition.</footnote></footnotes><ownerSignature><signatureName>/s/ Walter W. Vaughan</signatureName><signatureDate>2003-08-22</signatureDate></ownerSignature></ownershipDocument>



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</SEC-DOCUMENT>
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