The T25 Medium tank was a prototype designed and tested in the United States, in 1944–45.

A variant of an earlier series of prototypes, the T20/T22/T23, the T25 was conceived as a possible replacement for both the M4 Sherman Medium tank, and its previously proposed successor, the T23.

Designed between mid-1943 and early 1944, the major innovation of the T25 was the newer and more powerful 90 mm gun M3.

[3] However, a heavy tank design, the T26 (known later as the M26 Pershing) was instead put into production,[4] also wielding the 90 mm gun M3.

A pilot model T25 was completed by Chrysler Engineering Division and shipped by Detroit Tank Arsenal to Aberdeen Proving Ground on the 21 January 1944.