The 1963 Appalachian State Mountaineers football team was an American football team that represented Appalachian State Teachers College (now known as Appalachian State University) as a member of the Carolinas Conference during the 1963 NAIA football season. In their fourth year under head coach Jim Duncan, the Mountaineers compiled an overall record of 6–3, with a mark of 4–1 in conference play, and finished third in the Carolinas Conference.