The 1991 Nevada Wolf Pack football team was an American football team that represented the University of Nevada, Reno in the Big Sky Conference (BSC) during the 1991 NCAA Division I-AA football season. In their 16th season under head coach Chris Ault, the Wolf Pack compiled a 12–2 record (8–0 against conference opponents), won the BSC championship and lost to Youngstown State, the eventual national champion, in the NCAA Division I-AA Quarterfinals. They played their home games at Mackay Stadium.