USS PC-1603 was a submarine chaser of the United States Navy during World War II.

On 1 June, she was renamed PC-1603 and earned three battle stars for service in the Pacific during the war.

Force was laid down on 19 November 1941 by the Penn-Jersey Corp., Camden, New Jersey, launched on 7 September 1942, and commissioned on 16 June 1943.

On 26 May 1945, while anchored in Kimmu Wan, Okinawa, PC-1603 was struck by two Kawasaki Ki-61 "Tony" kamikaze aircraft.

The hull was incorporated in the building of a breakwater/dock and officially donated to the Government of the Ryukyu Islands on 10 July 1957.