22nd Battalion
- 2/22nd Battalion (Australia)
- 22nd (County of London) Battalion (The Queen's)
- 22nd Battalion (Australia)
- 22nd Battalion (French Canadian), CEF
- 22nd Battalion (New Zealand)
- 22nd Brigade (disambiguation)
- 22nd Chemical Battalion (United States)
- 22nd Division (disambiguation)
- 22nd Motorized Infantry Battalion (Ukraine)
- 22nd Peacekeeping Battalion (Moldova)
- 22nd Regiment (disambiguation)
- 22nd Virginia Infantry Battalion
- XXII Corps (disambiguation)