The 2015 New Mexico State Aggies football team represented New Mexico State University in the 2015 NCAA Division I FBS football season. They were led by third–year head coach Doug Martin and played their home games at Aggie Memorial Stadium in Las Cruces, New Mexico. The Aggies were football–only members of the Sun Belt Conference. They finished the season 3–9 and 3–5 in Sun Belt play to finish in a five way tie for fifth place.