Monty Gene Beisel (/ˈbaɪzəl/; born August 20, 1978) is an American former professional football linebacker.

Beisel was a Parade All-America selection and honorable mention All-USA pick by USA Today in 1996.

Beisel also played in 44 games accumulating 192 tackles (110 solo), 22.0 sacks, 45.0 stops for loss and 18 passes defended.

In Week 6 of the 2008 season, against the Dallas Cowboys, Beisel became the first player in NFL history to score a game-winning touchdown in overtime by returning a blocked punt.

Since his retirement, Beisel has worked as a real estate agent specializing in luxury homes and condos.