49th Division or 49th Infantry Division may refer to:
Infantry divisions:
- 49th Division (1st Formation)(People's Republic of China), 1949–1950
- 49th Reserve Division (German Empire)
- 49th Infantry Division Parma (Kingdom of Italy)
- 49th Division (Imperial Japanese Army), Japanese Burma Area Army
- 49th Rifle Division (RSFSR)
- 49th Guards Rifle Division (Soviet Union)
- 49th Rifle Division (Soviet Union)
- 49th (West Riding) Infantry Division (United Kingdom)
- 49th Infantry Division (United States)
- 49th Infantry Division (Wehrmacht) (Germany)
Armoured divisions:
- 49th Armored Division (United States)
See also
- 49th Brigade (disambiguation)
- 49th Regiment (disambiguation)
- 49th Squadron (disambiguation)