1990 Appalachian State Mountaineers football team

The 1990 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 1990 NCAA Division I-AA football season. In their second year under head coach Jerry Moore, the Mountaineers compiled an overall record of 6–5 with a conference mark of 5–2.