Exhibit 23.1


               CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS

         We have issued our report dated February 25, 2000 (except for Notes 1
and 13, as to which the date is July 5, 2000) accompanying the consolidated
financial statements of Xybernaut Corporation appearing in the Corporation's
Annual Report on Form 10-KSB (dated March 17, 2000), 10-KSB/A (dated April 21,
2000) and 10-KSB/A (dated July 7, 2000) for the year ended December 31, 1999
which are incorporated by reference in this Registration Statement on Form S-3.
We consent to the incorporation by reference in the Registration Statement of
the aforementioned report and to the use of our name as it appears under the
caption "Experts."

/S/      Grant Thornton LLP

Vienna, Virginia
December 14, 2000