USS Tasco (SP-502), was a United States Navy minesweeper and patrol vessel in commission from 1917 to 1919. Tasco was built as a commercial tug of the same name in 1907 at New London, Connecticut. The U.S. Navy acquired her from her owner, J. Shewan of Brooklyn, New York, on 4 August 1917 for use as a minesweeper and section patrol vessel during World War I. She was commissioned as USS Tasco (SP-502) on 29 September 1917. Assigned to the 3rd Naval District, Tasco operated along the coastline in the New York City area for the remainder of World War I and into the spring of 1919.