HMS C14 was a British C class submarine built by Vickers, Barrow. She was laid down on 4 December 1906 and was commissioned on 13 March 1908. C14 was sunk in a collision with Hopper No.27 at Plymouth Sound on 10 December 1913. There were no casualties. She was salvaged and recommissioned. HMS C14 was finally sold on 5 December 1921.