11th Division
- 11 Squadron (disambiguation)
- 11th (East Africa) Division
- 11th (Northern) Division
- 11th Air Defense Division
- 11th Air Division
- 11th Airborne Division (United States)
- 11th Armored Division (Syria)
- 11th Armored Division (United States)
- 11th Armoured Division (United Kingdom)
- 11th Army (disambiguation)
- 11th Battalion (disambiguation)
- 11th Bavarian Infantry Division
- 11th Brigade (disambiguation)
- 11th Division (Australia)
- 11th Division (German Empire)
- 11th Division (Imperial Japanese Army)
- 11th Division (Spain)
- 11th Division (Sri Lanka)
- 11th Group (disambiguation)
- 11th Indian Division
- 11th Infantry Division (Bangladesh)
- 11th Infantry Division (Greece)
- 11th Infantry Division (India)
- 11th Infantry Division (Pakistan)
- 11th Infantry Division (Poland)
- 11th Infantry Division (Russian Empire)
- 11th Infantry Division (United States)
- 11th Infantry Division (Wehrmacht)
- 11th Infantry Division Brennero
- 11th Panzer Division (Wehrmacht)
- 11th Regiment (disambiguation)
- 11th Reserve Division (German Empire)
- 11th Rifle Division (disambiguation)
- 11th SS Volunteer Panzergrenadier Division Nordland
- Apirat Kongsompong
- XI Corps (disambiguation)