The first USS Undine was a "tinclad" steamer in the United States Navy in 1864, during the American Civil War. She was captured on 30 October and put in service with the Confederates, but was not renamed before being burned, 5 days later, to prevent re-capture. Undine was built in 1863 at Cincinnati, Ohio, as Ben Gaylord. She was purchased by the Navy at Cincinnati on 7 March 1864 and commissioned there in April.