"War Department" may refer to the military establishments of several different countries:
- British War Department
- Confederate War Department
- United States Department of War, under the leadership of the United States Secretary of War (until 1947)
This is a disambiguation page, that is, one that just points to other pages that might otherwise have the same name. If you followed a link here, you might want to go back and fix that link to point to the appropriate specific page.