Department of Defence
# Department of Defence

Department of Defence or Department of Defense may refer to:

## Current departments of defence

* Department of Defence (Australia)
* Department of National Defence (Canada)
* Department of Defence (Ireland)
* Department of National Defense (Philippines)
* Department of Defence (South Africa)
* Federal Department of Defence, Civil Protection and Sport (Switzerland)
* Department of Defense (United States)

## Historical

* Department of Defence (1901–21) (Australia)
* Department of Defence (1921–39) (Australia)
* Department of Defence Co-ordination (Australia, 1939–1942)
* Department of Defence Production (Australia, 1951–1958)
* Department of Defence Support (Australia, 1982–1984)
