FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person *   Phillips Kevin M 2. Date of Event Requiring Statement (Month/Day/Year) 08/26/2005 3. Issuer Name and Ticker or Trading Symbol MANTECH INTERNATIONAL CORP [MANT] (Last) (First) (Middle) 12015 LEE JACKSON HIGHWAY 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Vice President - CFO 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) FAIRFAX, VA 22033 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Class A Common Stock 94 (1) I By the ManTech International Corporation Employee Stock Ownership Plan

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (right to buy)	  (2)	08/14/2013	Class A Common Stock	15,000	$ 20.97	D	Â
Employee Stock Option (right to buy)	  (3)	10/24/2014	Class A Common Stock	25,000	$ 19.82	D	Â
Employee Stock Option (right to buy)	  (4)	11/07/2014	Class A Common Stock	10,000	$ 22.5	D	Â
Employee Stock Option (right to buy)	  (5)	03/14/2015	Class A Common Stock	10,000	$ 23.95	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Phillips Kevin M 12015 LEE JACKSON HIGHWAY FAIRFAX, VA 22033	Â	Â	  Vice President - CFO	Â

Signatures

Michael R. Putnam, by Power of Attorney		09/01/2005
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Restricted stock grant pursuant to the ManTech International Corporation Employee Stock Ownership Plan
(2)	The option vests in three equal annual installments, beginning on August 15, 2004 (the first anniversary of the date of the grant).
(3)	The option vests in three equal annual installments, beginning on October 25, 2005 (the first anniversary of the date of the grant).
(4)	The option vests in three equal annual installments, beginning on November 8, 2005 (the first anniversary of the date of the grant).
(5)	The option vests in three equal annual installments, beginning on March 15, 2006 (the first anniversary of the date of the grant).

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