6th Division may refer to:
Infantry divisions
- 6th Division (Australia)
- 6th Division (Austria)
- 6th (United Kingdom) Division
- Finnish 6th Division (Winter War)
- Finnish 6th Division (Continuation War)
- 6th Division (Reichswehr)
- 6th Division (German Empire)
- 6th Infantry Division (Wehrmacht), Germany (subsequently renamed the 6th Grenadier Division and later the 6th Volksgrenedier Division)
- 6th SS Mountain Division Nord, Germany
- 6th Infantry Division (Greece)
- 6th Division (Imperial Japanese Army)
- 6th (Poona) Division, of the British Indian Army before and during the First World War
- 6th Poona Divisional Area, of the British Indian Army during the First World War
- 6th Infantry Division (India)
- 6th Division (Iraq)
- 6th Alpine Division Alpi Graie, Kingdom of Italy
- 6th Infantry Division Cuneo, Kingdom of Italy
- 6th Division (Japan)
- 6th Division (North Korea)
- 6th Division (Norway)
- 6th Infantry Division (Philippines)
- 6th Infantry Division (Philippine Army)
- 6th Infantry Division (Poland)
- 6th Division (Singapore)
- 6th Infantry Division (South Korea)
- 6th Rifle Division (Soviet Union)
- 6th Infantry Division (Thailand)
- 6th Airborne Division (United Kingdom)
- 6th Infantry Division (United States)
- 6th Marine Division (United States)
- 6th Division (Yugoslav Partisan)
Cavalry Divisions
- 6th Cavalry Division (German Empire)
Armoured Divisions
- 1st Light Division (Germany) (6th Panzer Division), German Empire
- 6th Armoured Division (South Africa)
- 6th Armored Division (Syria)
- 6th Armoured Division (United Kingdom)
- 6th Armored Division (United States)
- 6th Armoured Division (Pakistan)
Non-military uses
- Division 6 (Swedish football)
- Division 6 (Swedish women's football)
- (various places in Canada)