30th Division may refer to:
Infantry units
- 30th Division (1st Formation) (People's Republic of China), 1949–1952
- 30th Division (German Empire)
- 30th Reserve Division (German Empire)
- 30th Infantry Division (Wehrmacht), Germany
- 30th Waffen Grenadier Division of the SS, Germany
- 30th Infantry Division Sabauda, Kingdom of Italy
- 30th Division (Imperial Japanese Army)
- 30th Infantry Division (Poland)
- 30th Rifle Division, Soviet Union
- 30th Division (United Kingdom)
- 30th Infantry Division (United States)
- 30th Division (Yugoslav Partisans), 1943–1945
Other units
- 30th Armored Division (United States)
- 30th Cavalry Division (Soviet Union)
- 30th Division (Syria), established 2017
- Division 30, a 2015 Syrian rebel group
See also
- List of military divisions by number
- 30th Army (disambiguation)
- 30th Battalion (disambiguation)
- 30th Brigade (disambiguation)
- XXX Corps (disambiguation)
- 30th Regiment (disambiguation)
- 30 Squadron (disambiguation)