39th Division or 39th Infantry Division may refer to:
Infantry divisions 39th Division (German Empire), Imperial German Army 39th Bavarian Reserve Division, Bavarian and Imperial German Armies 39th Infantry Division (Wehrmacht), German Army during World War II 39th Infantry Division (India), British Army of India 39th Division (Imperial Japanese Army) 39th Infantry Division (Poland), Polish Army 39th Infantry Division (Russian Empire) 39th Guards Mechanized Division, Soviet Union 39th Guards Motor Rifle Division, Soviet Army, earlier the 39th Guards Rifle Division 39th Mechanized Division (Soviet Union) 39th Rifle Division, Soviet Army 39th Mechanized Infantry Division, Turkey 39th Division (United Kingdom) 39th Infantry Division (United States), United States Army 39th Division (Yugoslav Partisans)
Armoured divisions 39th Guards Tank Division, Soviet Union 39th Tank Division (Soviet Union), Soviet Army, part of the 18th Army (Soviet Union) 39th Armored Division (United States), phantom unit during WWII
Artillery divisions 39th Guards Rocket Division, Soviet Union
Aviation divisions 39th Air Division, United States Air Force 39th Aviation Division, Yugoslav Air Force
Politics and government Room 39, also called "Division 39", a slush fund allegedly operated by the North Korean government
See also Division 39 (disambiguation) List of military divisions by number 39th Army (disambiguation) 39th Brigade (disambiguation) 39th Regiment (disambiguation) 39th Battalion (disambiguation) 39th Squadron (disambiguation)