The 2017 USC Trojans football team represented the University of Southern California in the 2017 NCAA Division I FBS football season. They played their home games at the Los Angeles Memorial Coliseum as members of the South Division of the Pac-12 Conference. They were led by second-year head coach Clay Helton. They finished the season 11–3, 8–1 in Pac-12 play to be champions of the South Division. They represented the South Division in the Pac-12 Championship Game where they defeated Stanford to become Pac-12 Champions. They were invited to play in the Cotton Bowl where they were soundly defeated at the hands of Ohio State, 24–7.