USS Bostwick (DE-103) was a Cannon class destroyer escort built for the United States Navy during World War II. She served in the Atlantic Ocean and provided escort service against submarine and air attack for Navy vessels and convoys. She was laid down on 6 February 1943 at Wilmington, Delaware, by the Dravo Corp.; launched on 30 August 1943; sponsored by Mrs. Fred D. Pierce; and commissioned on 1 December 1943, Lieutenant Commander John H. Church, Jr. in command.