Pinto Bean was an eastern gray squirrel on the campus of the University of Illinois Urbana-Champaign who was renowned and named for his rare piebald pattern.

[1] During a home football game against Minnesota, a tribute to Pinto Bean was shown on the jumbotron at Memorial Stadium.

[1] According to Illinois Natural History Survey director Eric Shauber, this was the result of a rare genetic mutation that affected where melanin was distributed in the squirrel's body.

[2][8] As of March 27, 2023, Pinto Bean's taxidermied remains are on display at the Forbes Natural History Building on the south side of the university's campus.

[9] During Illinois's October 15, 2022, home football game against Minnesota, the jumbotron at Memorial Stadium displayed a tribute to Pinto Bean at halftime.