Consent of Independent Registered Public Accounting Firm

The Board of Directors
Anteon International Corporation:

We consent to the  incorporation by reference in the Registration  Statements on
Form S-3 (File Nos.  333-111249,  333-108858 and  333-108147) and Form S-8 (File
Nos.  333-84930,  333-11631,  333-118878,  333-113401  and  333-84930) of Anteon
International  Corporation and subsidiaries (the "Company") of our reports dated
March 4, 2005, with respect to the consolidated balance sheets of the Company as
of  December  31,  2004 and  2003 and the  related  consolidated  statements  of
operations,  stockholders'  equity and comprehensive  income, and cash flows for
each of the years in the  three-year  period ended  December  31, 2004,  and the
related   financial   statement   schedule,   management's   assessment  of  the
effectiveness  of internal  control over financial  reporting as of December 31,
2004 and the  effectiveness of internal  control over financial  reporting as of
December 31, 2004,  which reports  appear in the December 31, 2004 annual report
on Form 10-K of the Company.

McLean, Virginia
March 10, 2005