1 or USS S.C. 1, was an SC-1-class submarine chaser built for the United States Navy during World War I. SC-1 was a wooden-hulled 110-foot (34 m) submarine chaser built at Naval Station New Orleans in New Orleans, Louisiana.

During World War I, S.C. 1 was based at Base 27, Plymouth, England, from which she conducted antisubmarine patrols against German submarines as a part of Unit 1 with the submarine chasers S.C. 344 and USS S.C. 345.

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

On 20 July 1921, the Navy sold SC-1 to Henry A. Hitner's Sons Company of Philadelphia, Pennsylvania.

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