63rd Division may refer to:
Infantry divisions 63rd Infantry Division (Wehrmacht), Germany, World War II 63rd Infantry Division "Cirene", Italian Army, World War II 63rd Division (Imperial Japanese Army) 63rd Infantry Division (Russian Empire) 63rd Guards Motor Rifle Division, Soviet Union 63rd Guards Rifle Division, Soviet Union 63rd Mountain Rifle Division, Soviet Union 63rd Rifle Division, Soviet Union 63rd Division (Spain) 63rd (2nd Northumbrian) Division, British Army, World War I 63rd (Royal Naval) Division, British Army, World War I 63rd Infantry Division (United States)
Cavalry divisions 63rd Cavalry Division (United States)
Other divisions 63rd Readiness Division, United States
See also List of military divisions by number 63rd Brigade (disambiguation) 63rd Regiment (disambiguation)