49 and USS S.C. 49, was an SC-1-class submarine chaser built for the United States Navy during the First World War.

SC-49 was a wooden-hulled 110-foot (34 m) submarine chaser built at the New York Navy Yard in Brooklyn, New York, and was commissioned on 27 March 1918 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-49 to Joseph G. Hitner of Philadelphia, Pennsylvania for his private boat firm.

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