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 June 30, 2005
(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 15, 2005

/s/ John B. Fisher
John B. Fisher
Title: President, Principal Executive Officer



Dated: August 15, 2005

/s/ Richard J. Thomas
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.