412th

412th may refer to:


 * 412th Bombardment Squadron or 912th Air Refueling Squadron (912 ARS), full-time active duty Regular Air Force squadron in California
 * 412th Engineer Command (United States) (TEC), US Army Reserve unit, conducts theater-level engineer operations for Eighth U.S. Army, Korea
 * 412th Fighter Squadron or 197th Air Refueling Squadron, flies the KC-135R Stratotanker
 * 412th Flight Test Squadron (412 FLTS), part of the 412th Test Wing based at Edwards Air Force Base, California
 * 412th Test Wing, wing of the United States Air Force, assigned to the Air Force Test Center at Edwards Air Force Base, California