SECTION 906 CERTIFICATION

Pursuant to 18 U.S.C.ss.  1350, the undersigned officers of Federated Short-Term
Municipal  Trust  (the  "Registrant"),  hereby  certify,  to  the  best  of  our
knowledge,  that the  Registrant's  Report on Form  N-CSR for the  period  ended
6/30/03 (the "Report") fully complies with the  requirements of Section 13(a) or
15(d),  as  applicable,  of the Securities and Exchange Act of 1934 and that the
information  contained in the Report fairly presents,  in all material respects,
the financial condition and results of operations of the Registrant.


Dated:  August 27, 2003

/s/ J. Christopher Donahue

Title: President, Principal Executive Officer



Dated: August 27, 2003

/s/ Richard J. Thomas

Title: Treasurer, Principal Financial Officer

This  certification is being furnished solely pursuant to 18 U.S.C.ss.  1350 and
is not being filed as part of the Report or as a separate disclosure document.