USS SC-501 was a SC-497 class submarine chaser that served in the United States Coast Guard and later the United States Navy during World War II.

She was originally laid down as PC-501 on 29 April 1941 by the Seabrook Yacht Corporation in Houston, Texas, and launched on 24 January 1942.

She was reclassified as Unclassified Miscellaneous Vessel IX-100 on 21 April 1943 and named Racer on 3 May 1943.

She was struck from the Navy Register on 5 June 1946 and sold to the private market on 20 December 1946.

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