The 1991 Mobil Cotton Bowl Classic was a post-season college football game played on January 1, 1991. It pitted the #3 Texas Longhorns, champions of the Southwest Conference, against the independent #4 Miami Hurricanes.

Miami entered the game having only lost to BYU and Notre Dame. Texas had stunned Penn State on the road 17-13 to open its season, then lost at home to Colorado 29-22 before winning nine straight games (including wins over then #4 Oklahoma and then #3 Houston to win the Southwest Conference championship).

Miami led 19-3 at halftime, but put the game out of reach with two touchdowns within five minutes in the third quarter. The Hurricanes also set Cotton Bowl and school records for most penalties (15) and most penalty yards (202) in a single game, many of which were for unsportsmanlike conduct. Partly as a result of controversy from this game, the NCAA instituted a new rule stipulating that excessive celebration would be a 15-yard penalty.^[1] In the pre-Internet era, many established newspaper reporters castigated the Hurricanes' players and coaches for Miami's actions, with some reporters demanding that coach Dennis Erickson be suspended or fired and that the game result be vacated and the win given to Texas. These calls were ignored.

The next season, Miami claimed the AP National Championship by going 12-0, ending with a 22-0 victory over Nebraska in the Orange Bowl.

Texas went 5-6 in their next season, did not play in another New Year's Day bowl game until 1995, and did not win another New Year's Day bowl game until the 1998 Cotton Bowl victory.