Ownership Submission
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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(Print or Type Responses)
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  
Employee Stock Option (right to buy)   (3) 10/24/2014 Class A Common Stock 25,000 $ 19.82 D  
Employee Stock Option (right to buy)   (4) 11/07/2014 Class A Common Stock 10,000 $ 22.5 D  
Employee Stock Option (right to buy)   (5) 03/14/2015 Class A Common Stock 10,000 $ 23.95 D  

Reporting Owners

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

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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