The 1991 NCAA Division I-A football season was the main college football season sanctioned by the National Collegiate Athletic Association (NCAA). The season began on August 28, 1991, and ended on January 1, 1992. For the second consecutive season, there was a split national championship. Both the Miami Hurricanes and the Washington Huskies finished the season undefeated (12–0) and with the top ranking in a nationally recognized poll.