USS Wallacut (YTB-420), later YTM-420, was a tug that served in the United States Navy from 1945 to 1947 and from 1950 to 1976. Wallacut was laid down on 14 August 1944 by the United States Coast Guard Yard at Curtis Bay, Maryland. She was launched on 28 October 1944, sponsored by Miss Sally Koshorek, and completed on 23 March 1945. She was delivered to the U.S. Navy and placed in service on 31 March 1945.