86th Division or 86th Infantry Division may refer to:
Infantry divisions 86th Division (1st Formation) (People's Republic of China), 1949–1951 86th Motorized Infantry Division, People's Republic of China 86th Infantry Division (German Empire) 86th Infantry Division (Wehrmacht), Germany 86th Division (Imperial Japanese Army) 86th Guards Rifle Division, Soviet Union 86th Rifle Division, Soviet Union 86th Division (Syria) 86th Infantry Division (United States)
Artillery divisions 86th Anti-Aircraft Artillery Division, Soviet Union
Aviation divisions 86th Air Division, United States Air Force
See also List of military divisions by number 86th Brigade (disambiguation) 86th Regiment (disambiguation) 86th Wing (disambiguation)