In military terms, 149th Division or 149th Infantry Division may refer to:
149th Division (People's Republic of China), later the 149th Army Division (1960–1969) 149th Motorized Infantry Division, People's Republic of China, earlier the 149th Army Division (1969–1985) 149th Division (Imperial Japanese Army) 149th Mixed Aviation Division, Russia/Soviet Union 149th Rifle Division, Soviet Union
See also List of military divisions by number 149th Brigade (disambiguation) 149th Regiment (disambiguation) 149th Squadron (disambiguation) 149th (disambiguation)