South Coast Shipyard was a shipbuilding company in Newport, California. To support the World War II demand for ships South Coast Shipyard built: minesweepers, Torpedo Boats, Submarine chasers, & Air-sea rescue boats. South Coast Shipyard was opened in 1938 by Walton Hubbard. After World War II the shipyard continued to build ships for the US Navy till 1955. The shipyard was located at 2300 Newport Boulevard, Newport, California. The shipyard closed in 1963.

USS James M. Gilliss (AMCU-13/YMS-262) was a YMS-1-class minesweeper of the YMS-135 subclass named after James Melville Gilliss, a US naval officer credited with establishing the US Naval Observatory.