30th Corps, Thirtieth Corps, or XXX Corps may refer to:
- XXX Corps (United Kingdom)
- XXX Army Corps (Wehrmacht)
- XXX Corps (Pakistan)
See also
- List of military corps by number
- 30th Army (disambiguation)
- 30th Battalion (disambiguation)
- 30th Division (disambiguation)
- 30th Regiment (disambiguation)
- 30 Squadron (disambiguation)