Mark X or Mark 10 often refers to the tenth version of a product, frequently military hardware. "Mark", meaning "model" or "variant", can be abbreviated "Mk."
Mark X or Mark 10 may refer to:
Military and weaponry 21-inch Mark 10 torpedo (1915), an American torpedo 21-inch Mark X torpedo (1939), a British wet heater torpedo Spitfire Mk X, a Supermarine Spitfire reconnaissance variant with pressurised cockpit Bristol Beaufighter TF Mk X, a major torpedo and strike aircraft of its day Limbo (weapon) or Anti Submarine Mortar Mark 10 (1955), common British three-barreled mortar fitted to Royal Navy escort ships Mark 10 nuclear bomb, a proposed weapon design that did not go into production Mk 10 missile launcher, used to launch the Convair RIM-2 Terrier two-stage medium-range naval surface-to-air missile (SAM) Martin-Baker Mk.10, an ejection seat
Vehicles Jaguar Mark X, a large British automobile Toyota Mark X, a Japanese automobile Lincoln Mark X, an American concept car Lincoln MKX, an American car referred to at its inception as the "Mark-Ex" Cooper Mark X, a Formula Three racing car
Other uses Mark 10 or Mark X, the tenth chapter of the Gospel of Mark in the New Testament of the Christian Bible
See also X mark MKX (disambiguation) mk10 (disambiguation)