Six ships (and one shore establishment) of the Royal Navy have borne the name HMS Sphinx or HMS Sphynx, after the mythical creature, the Sphinx:
HMS Sphinx was a 24-gun sixth rate launched in 1748 and sold in 1770.HMS Sphinx was a 20-gun sixth rate launched in 1775. The French captured her in September 1779, but HMS Proserpine recaptured her on 29 November 1779. She was broken up in 1811.HMS Sphynx was a 10-gun Cherokee-class brig-sloop launched in 1815 and sold in 1835.HMS Sphynx was a wooden paddle sloop launched in 1846 and broken up in 1881.HMS Sphinx was a composite paddle vessel launched in 1882 and sold in 1919.HMS Sphinx was an Halcyon-class minesweeper launched in 1939, and foundered in 1940 after an air attack.HMS Sphinx was the name given to an naval accommodation camp in Alexandria, Egypt, from April 1941.