In military terms, 55th Division or 55th Infantry Division may refer to:
Infantry divisions 55th Infantry Division (Bangladesh) 55th Division (People's Republic of China) 55th Infantry Division (France) 55th Infantry Division "Savona", Kingdom of Italy 55th Division (Imperial Japanese Army) 55th Infantry Division (Poland) 55th Infantry Division (Russian Empire) 55th Infantry Division (South Korea) 55th Guards Naval Infantry Division, Russia/Soviet Union 55th Guards Rifle Division, Soviet Union 55th Rifle Division, Soviet Union 55th (West Lancashire) Division, United Kingdom, 1908–1920 55th (West Lancashire) Infantry Division, United Kingdom, 1921–1945 55th Infantry Division (United States)
Other divisions 55th Mixed Aviation Division, Soviet Union
See also List of military divisions by number 55th Brigade (disambiguation) 55th Regiment (disambiguation)