49th Division or 49th Infantry Division may refer to:
Infantry divisions Germany 49th Reserve Division (German Empire) 49th Infantry Division (Wehrmacht), Germany Russia and Soviet Union 49th Infantry Division (Russian Empire) 49th Rifle Division (disambiguation), several divisions in Russia and the Soviet Union
Others 49th Division (1st Formation) (People's Republic of China), 1949–1950 49th Infantry Division "Parma", Kingdom of Italy 49th Division (Imperial Japanese Army), Japanese Burma Area Army 49th (West Riding) Infantry Division, United Kingdom 49th Infantry Division (United States)
Other uses 49th Air Division, United States 49th Armored Division, United States
See also List of military divisions by number 49th Brigade (disambiguation) 49th Regiment (disambiguation) 49th Squadron (disambiguation)