"Reveille", called in French "Le Réveil" is a bugle call, trumpet call, drum, fife-and-drum or pipes call most often associated with the military; it is chiefly used to wake military personnel at sunrise. The name comes from réveille, the French word for "wake up".

A bugle call is a short tune, originating as a military signal announcing scheduled and certain non-scheduled events on a military installation, battlefield, or ship. Historically, bugles, drums, and other loud musical instruments were used for clear communication in the noise and confusion of a battlefield. Naval bugle calls were also used to command the crew of many warships.