HMS R10 was a British R class submarine built by Armstrong Whitworth. She was laid down on 7 December 1917 and launched on 5 October 1918. R10 was commissioned on 12 April 1919. She came too late to see any combat in World War I, like most of the other R class submarines. R10 was sold on 19 February 1929 to Cashmore, Newport.
Hutchinson, Robert, Submarines, War Beneath The Waves, from 1776 to the Present Day