4th Airlift Squadron
4th Dalai Lama
4th Fighter Division (People's Republic of China)
4th Fighter Squadron
4th Fleet (Imperial Japanese Navy)
4th Golden Raspberry Awards
4th Infantry Regiment (United States)
4th Marine Division (United States)
4th North Carolina Infantry
4th of August Regime
4th of July (Fireworks)
4th Parachute Brigade (United Kingdom)
4th Portuguese India Armada (Gama, 1502)
4th Ring Road (Beijing)
4th Tactical Reconnaissance Squadron (Photographic)