Four ships in the United States Navy have been named USS Gwin for William Gwin.
- was a torpedo boat, commissioned in 1898 and decommissioned in 1914. She was renamed Cyane and reclassified YFB-4 in 1920, and finally sold in 1925
- was a commissioned in 1920, and decommissioned in 1922.
- was a , commissioned in 1941, served in World War II and sank in battle in July 1943.
- was a destroyer-minelayer, commissioned in 1944 and decommissioned in 1958. She was transferred to Turkey in 1971 and renamed TCG Muavenet (DM-357). She was scrapped in 1992.