The 2017 Idaho Vandals football team represented the University of Idaho in the 2017 NCAA Division I FBS football season. The Vandals played their home games at the Kibbie Dome in Moscow, Idaho, and competed in the Sun Belt Conference. They were led by fifth-year head coach Paul Petrino. They finished the season 4–8, 3–5 in Sun Belt play to finish in a tie for eighth place. The season marked the Vandals' final year in the Sun Belt and the FBS, as the team rejoined the Big Sky Conference and FCS in 2018.