The 2015 Appalachian State Mountaineers football team represented Appalachian State University in the 2015 NCAA Division I FBS football season.

They were led by third-year head coach Scott Satterfield and played their home games at Kidd Brewer Stadium in Boone, North Carolina.

Appalachian State announced their 2015 football schedule on February 27, 2015.

The 2015 schedule consisted of six home and away games in the regular season.

The Mountaineers hosted Sun Belt foes Arkansas State, Georgia Southern, Louisiana–Lafayette, and Troy, and travelled to Georgia State, Idaho, Louisiana–Monroe, and South Alabama.