414th may refer to:

414th Bombardment Squadron, inactive United States Air Force unit 414th Combat Training Squadron, United States Air Force unit 414th Fighter Group (414th FG), active United States Air Force unit 414th Infantry Regiment (United States), currently a Drill Sergeant Unit headquartered in Eugene, Oregon

Other uses No. 414 Squadron RCAF, Canadian Forces, Royal Canadian Air Force 414 Panzer Battalion, German-Dutch tank battalion

414 vehicles Russian submarine Daniil Moskovsky (B-414) German submarine U-414 USS Springer (SS-414) USS Russell (DD-414) HM LST-414

See also 414 (disambiguation) 414 (number) 414, the year 414 (CDXIV) of the Julian calendar 414 BC