| Year: | 2004 |
| Team: | Appalachian State Mountaineers |
| Sport: | football |
| Conference: | Southern Conference |
| Short Conf: | SoCon |
| Record: | 6–5 |
| Conf Record: | 4–3 |
| Head Coach: | Jerry Moore |
| Hc Year: | 16th |
| Off Scheme: | Multiple spread |
| Def Scheme: | 4–3 |
| Stadium: | Kidd Brewer Stadium |
The 2004 Appalachian State Mountaineers football team represented Appalachian State University as a member of the Southern Conference (SoCON) in the 2004 NCAA Division I-AA football season. Led by 16th-year head coach Jerry Moore, the Mountaineers compiled an overall record of 6–5 with a mark of 4–3 in conference play, placing second in the SoCon.[1] The low point of the season was a 30–27 loss to rival Western Carolina in the Battle for the Old Mountain Jug. Home games were played at Kidd Brewer Stadium in Boone, North Carolina.