HMS Fermoy was a Hunt class minesweeper of the Royal Navy that served during both World War I and World War II. By 1923 she had become the depot ship for the Submarine Periscope School at Portland. She was bombed by Italian aircraft off Valletta, Malta on 30 April 1941 then on 4 May 1941, and was written off as constructive total loss. She was eventually raised and sold for scrap.