18th Division

18th Division or 18th Infantry Division may refer to:

Infantry divisions

 * 18th Infantry Division (France)
 * 18th Infantry Division (Wehrmacht), Germany
 * 18th Division (German Empire)
 * 18th Reserve Division (German Empire)
 * 18th Infantry Division (Greece)
 * 18th Division (Imperial Japanese Army)
 * 18th Indian Division – British Indian Army during World War I
 * 18th Division (North Korea)
 * 18th Infantry Division (Poland)
 * 18th Division (South Vietnam)
 * 18th Guards Motor Rifle Division, Russia
 * 18th Rifle Division (Soviet Union)
 * 18th (Eastern) Division, a United Kingdom division of World War I
 * 18th Infantry Division (United Kingdom), a World War II division
 * 39th Infantry Division (United States), briefly designated the 18th Division during 1917
 * 18 Infantry Division Messina, an Italian unit of World War II

Cavalry divisions

 * 18th Cavalry Division (Soviet Union)

Armoured divisions

 * 18th Panzer Division (Wehrmacht), a German World War II division

Aviation divisions

 * 18th Strategic Aerospace Division, United States