The 2005 Montana Grizzlies football team represented the University of Montana as a member of the Big Sky Conference during the 2005 NCAA Division I-AA football season. Led by third-year head coach Bobby Hauck, the Grizzlies compiled an overall record of 8âÂÂ4, with a mark of 5âÂÂ2 in conference play, and finished as Big Sky co-champion. Montana advanced to the NCAA Division I-AA Football Championship playoffs, where the Grizzlies lost to Cal Poly in the first round. The team played home games at WashingtonâÂÂGrizzly Stadium in Missoula, Montana.