| Year: | 1973 |
| Team: | Appalachian State Mountaineers |
| Sport: | football |
| Conference: | Southern Conference |
| Short Conf: | SoCon |
| Record: | 3–7–1 |
| Conf Record: | 2–2 |
| Head Coach: | Jim Brakefield |
| Hc Year: | 3rd |
| Stadium: | Conrad Stadium |
The 1973 Appalachian State Mountaineers football team was an American football team that represented Appalachian State University as a member of the Southern Conference (SoCon) during the 1973 NCAA Division I football season. In their third year under head coach Jim Brakefield, the Mountaineers compiled an overall record of 3–7–1 with a mark of 2–2 in conference play, and finished fifth in the SoCon.