40th Division or 40th Infantry Division may refer to:
- Infantry Divisions
- 40th Division (German Empire), a unit of the Imperial German Army
- 40th Division (Imperial Japanese Army), a unit of the Imperial Japanese Army
- 40th Infantry Division (Philippine Commonwealth Army), a unit of the Philippine Commonwealth Army
- 40th Infantry Division (United Kingdom), a unit of the United Kingdom Army
- 40th Infantry Division (United States), a unit of the United States Army
- 40th Infantry Division (People's Republic of China), a unit of the PLA
- 40th Rifle Division (Soviet Union)
- Aviation Divisions
- 40th Air Division, a unit of the United States Air Force
Famous quotes containing the word division:
“O, if you raise this house against this house
It will the woefullest division prove
That ever fell upon this cursed earth.”
—William Shakespeare (1564–1616)