419th may refer to:
419th Fighter Wing, United States Air Force Reserve unit active with Tenth Air Force, based at Hill Air Force Base, Utah 419th Flight Test Squadron (419 FLTS), part of the 412th Test Wing based at Edwards Air Force Base, California 419th Night Fighter Squadron, inactive United States Air Force unit 419th Operations Group, operational component of the 419th Fighter Wing, stationed at Hill Air Force Base, Utah 419th Tactical Fighter Training Squadron, inactive United States Air Force unit
See also 419 (number) 419 (disambiguation) 419, the year 419 (CDXIX) of the Julian calendar 419 BC