2021 UNLV Rebels football team

The 2021 UNLV Rebels football team represented the University of Nevada, Las Vegas in the 2021 NCAA Division I FBS football season. The Rebels were led by second–year head coach Marcus Arroyo and played their home games at Allegiant Stadium. They were members of the West Division of the Mountain West Conference.

Mountain West media days
The Mountain West media days were held on July 21–22, 2021, at the Cosmopolitan in Paradise, Nevada.

Media poll
The preseason poll was released on July 21, 2021. The Rebels were predicted to finish in sixth place in the MW West Division.