500th
- 500 (disambiguation)
- 500th (1st Wessex) Field Company, Royal Engineers
- 500th Air Defense Group
- 500th Air Expeditionary Group
- 500th Bombardment Squadron
- 500th Brigade
- 500th Fighter-Bomber Squadron
- 500th Heavy Anti-Aircraft Regiment, Royal Artillery
- 500th Military Intelligence Brigade (United States)
- 500th Raider Infantry Battalion
- 500th SS Parachute Battalion
- 500th Simpsons episode
- Emmerdale Village's 500th anniversary