HMS K16 was a K class submarine built by William Beardmore and Company, Dalmuir. She was laid down in June 1916 and commissioned on 13 April 1918. The only incident that occurred with K16 was a sudden dive in Gare Loch after her hydroplanes failed. She surfaced successfully. K16 paid off on 12 December 1920. She was sold on 22 August 1924. She was resold in September 1924 in Charlestown.