The Department of Defence (U.S. spelling Department of Defense) is a department within the governments of a number of countries. It may refer to:

• Department of Defence (Australia)
• Department of National Defence and the Canadian Forces
• Department of Defence (Ireland)
• Department of National Defense (Philippines)
• South African Department of Defence
• United States Department of Defense

See also:

• Ministry of Defence (disambiguation page)

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.