Mark XVII

Mark XVII or Mark 17 often refers to the 17th version of a product, frequently military hardware. "Mark", meaning "model" or "variant", can be abbreviated "Mk."

Mark XVII or Mark 17 may refer to:


 * CP Mk.XVII; a Royal Navy central-pivot single gun mount used on destroyers in the 1930s and 1940s
 * De Havilland Mosquito NF Mk XVII; a Royal Air Force night fighter with British radar
 * Supermarine Seafire F Mk. XVII; a Royal Navy fighter with reinforced wings and modified landing gear
 * Mark XVII torpedo (1944); British 18 inch burner cycle torpedo
 * Mark 17 torpedo (1945-1950), US Navy torpedo used aboard destroyers; employed hydrogen peroxide as oxidant
 * Mark 17 nuclear bomb (1954-1955); the first mass-produced hydrogen bomb
 * Logistics Vehicle System MK17 Rear Body Unit; US Marine Corps heavy tactical vehicle trailer incorporating a crane
 * FN SCAR-H, Mk 17 Mod 0; a modular 7.62mm rifle employed by US Special Operations