28th Division or 28th Infantry Division may refer to:
Infantry divisions:
- 28th Division (German Empire)
- 28th Reserve Division (German Empire)
- 28th Jäger Division (Wehrmacht)
- 28th Infantry Division Aosta, Kingdom of Italy
- 28th Division (Imperial Japanese Army)
- 28th Infantry Division (Poland)
- 28th Division (Spain)
- 28th Division (United Kingdom)
- 28th Infantry Division (United States)
- 28th Infantry Division of Kordestan, Iran
Aviation divisions:
- 28th Air Division, United States Air Force