25 or USS S.C. 25, was an SC-1-class submarine chaser built for the United States Navy during the First World War.

She was commissioned on 16 October 1917 as USS Submarine Chaser No.

When the U.S. Navy adopted its modern hull number system on 17 July 1920, Submarine Chaser No.

On 24 June 1921, the Navy sold SC-25 to Joseph G. Hitner of Philadelphia, Pennsylvania.

This article about a specific ship or boat of the United States Armed Forces is a stub.