1991 NCAA Division II football season

The 1991 NCAA Division II football season, part of college football in the United States organized by the National Collegiate Athletic Association at the Division II level, began in August 1991, and concluded with the NCAA Division II Football Championship on December 14, 1991, at Braly Municipal Stadium in Florence, Alabama, hosted by the University of North Alabama. The Pittsburg State Gorillas defeated the Jacksonville State Gamecocks, 23–6, to win their first Division II national title.

The Harlon Hill Trophy was awarded to Ronnie West, wide receiver from Pittsburg State.

Conference changes

 * One program departed Division II for Division I-AA prior to the season.

Program changes

 * After Central State University (Oklahoma) changed its name to the University of Central Oklahoma in 1991, the Central State Bronchos became the Central Oklahoma Bronchos.

Postseason
The 1991 NCAA Division II Football Championship playoffs were the 19th single-elimination tournament to determine the national champion of men's NCAA Division II college football. The championship game was held at Braly Municipal Stadium in Florence, Alabama, for the sixth time.