The 2013 USC Trojans football team represented the University of Southern California in the 2013 NCAA Division I FBS college football season. They played their home games at Los Angeles Memorial Coliseum, and were members of the South Division of the Pac-12 Conference. They finished the season 10–4, 6–3 in Pac-12 play to finish in a tie for second place in the South Division. They were invited to the Las Vegas Bowl where they defeated Fresno State.

The 2013 NCAA Division I FBS football season was the highest level college football competition in the United States organized by the National Collegiate Athletic Association (NCAA).