414th

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