USS YP-389 was a United States Navy yard patrol (YP) boat that served in World War II. The ship was built in 1941 as the fishing trawler Cohasset at the Fore River Shipyard in Quincy, Massachusetts, for R. O'Brien and Company. Acquired by the Navy on 6 February 1942, she was originally designated as a coastal minesweeper, AMc-202, but was reclassified as a District Patrol Craft, YP-389, on 1 May 1942. The 170 long tons (170 t) ship was equipped with one 3 in (76 mm) dual-purpose gun to protect the ship from enemy aircraft and surfaced submarines and two .30 in (7.6 mm) machine guns.