| Year: | 1931 |
| Team: | Appalachian State Mountaineers |
| Sport: | football |
| Conference: | North State Conference |
| Short Conf: | NSC |
| Record: | 9–2–2 |
| Conf Record: | 3–0 |
| Head Coach: | C. B. Johnston |
| Hc Year: | 3rd |
| Stadium: | College Field |
| Champion: | NSC champion |
| Bowl: | Charlotte Charity Game |
| Bowl Result: | W 15–7 vs. |
The 1931 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 North State Conference during the 1931 college football season. In their third year under head coach C. B. Johnston, the Mountaineers compiled an overall record of 9–2–2, with a mark of 3–0 in conference play, finished as North State champion, and with a victory over in the Charlotte Charity Game.