Exhibit 23.3


                       CONSENT OF INDEPENDENT ACCOUNTANTS
                       ----------------------------------


We hereby consent to the incorporation by reference in this Registration
Statement on Form S-8 for the ManTech International Corporation Management
Incentive Plan of our report dated April 26, 1999, except for Note 16, as to
which the date is June 7, 1999, and Note 15, as to which the date is November
15, 2001, relating to the consolidated financial statements of ManTech
International Corporation, which appears in the 2002 Registration Statement on
Form S-1 (File No. 333-73946) of ManTech International Corporation. We also
consent to the incorporation by reference of our report dated April 26, 1999
relating to the financial statemnt schedule, which also appears in such
Registration Statement on Form S-1.

/s/ PricewaterhouseCoopers LLP
PricewaterhouseCoopers LLP

McLean, Virginia
February 27, 2002

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