The 2015 Montana Grizzlies football team represented the University of Montana in the 2015 NCAA Division I FCS football season.

The Grizzlies were led by first-year coach Bob Stitt who took over after 15 years coaching the NCAA Division II Colorado Mines Orediggers.

The Grizzlies played their home games on campus at Washington–Grizzly Stadium.

They received an at-large bid to the FCS Playoffs where they defeated South Dakota State in the first round before losing in the second round to North Dakota State.

Despite also being a member of the Big Sky Conference, the game with Cal Poly on September 5 is considered a non-conference game.