50th Division or 50th Infantry Division may refer to:
Infantry divisions 50th Division (1st Formation) (People's Republic of China) 50th Infantry Division (German Empire) 50th Reserve Division, German Empire 50th Infantry Division (Wehrmacht), Germany 50th Infantry Division "Regina", Kingdom of Italy 50th Division (Imperial Japanese Army) 50th Infantry Division (Russian Empire) 50th Guards Rifle Division, Soviet Union 50th Reserve Rifle Division, Soviet Union 50th Rifle Division, Soviet Union 50th (Northumbrian) Division, United Kingdom, World War I 50th (Northumbrian) Infantry Division, United Kingdom, World War II
Armoured divisions 50th Armored Division, United States
Aviation divisions 50th Air Division, United States
See also 50 Divisions, an American compilation of construction information List of military divisions by number 50th Army (disambiguation) 50th Brigade (disambiguation) 50th Regiment (disambiguation) 50th Squadron (disambiguation) 50th Wing (disambiguation)