The 312th Tactical Fighter Training Squadron is an inactive United States Air Force unit. Its last assignment was with the 58th Tactical Training Wing at Luke Air Force Base, Arizona, where it was inactivated on 18 January 1991. Upon inactivation, the squadron's personnel, equipment and aircraft were transferred to the 311th Fighter Squadron. The squadron was first activated during World War II and served as a fighter replacement training unit until it was disbanded in 1944 in a reorganization of Army Air Forces training units. It was reconstituted and activated once again in 1984.