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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0000000000-06-003953.txt : 20060925
<SEC-HEADER>0000000000-06-003953.hdr.sgml : 20060925
<ACCEPTANCE-DATETIME>20060124160226
<PRIVATE-TO-PUBLIC>
ACCESSION NUMBER:		0000000000-06-003953
CONFORMED SUBMISSION TYPE:	UPLOAD
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20060124

FILED FOR:		

	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

	FILING VALUES:
		FORM TYPE:		UPLOAD

	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>LETTER
<SEQUENCE>1
<FILENAME>filename1.txt
<TEXT>


January 24, 2006


Mail Stop 4561

Mr. Kevin Phillips
Chief Financial Officer
ManTech International Corporation
12015 Lee Jackson Highway
Fairfax, VA  22033

Re:	ManTech International Corporation
Form 10-K for the year ended December 31, 2004
File No. 000-49604


Dear Mr. Phillips:

      We have completed our review of your Form 10-K and related
filings and do not, at this time, have any further comments.


							Sincerely,


Daniel L. Gordon
Branch Chief


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Hewitt Associates, Inc.
December 28, 2004
Page 1


</TEXT>
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