The 2009 Idaho Vandals American football team represented the University of Idaho during the 2009 NCAA Division I FBS football season.

The Vandals, led by third-year head coach Robb Akey, were members of the Western Athletic Conference (WAC) and played their home games at the Kibbie Dome, an indoor facility on campus in Moscow, Idaho.

Idaho was invited to the Humanitarian Bowl in Boise, in which they defeated the Bowling Green Falcons (7–5) of the MAC on December 30, by a score of 43–42.

The maximum was 16,000 for the Colorado State game on October 3.

The minimum was 8,532 for Utah State on November 28, two days after Thanksgiving.