William Francis "Bo" Ryan Jr. is an American former college basketball coach. He was the head coach of the Wisconsin Badgers men's basketball team of the University of Wisconsin–Madison from 2001 to December 2015. Ryan served as the head men's basketball coach at the University of Wisconsin–Platteville from 1984 to 1999 and at the University of Wisconsin–Milwaukee from 1999 to 2001. His overall collegiate coaching record was 747–233. Ryan was inducted into the College Basketball Hall of Fame in 2017.

The Wisconsin Badgers are an NCAA Division I college basketball team competing in the Big Ten Conference. The Badgers' home games are played at the Kohl Center, located on the University of Wisconsin–Madison campus in Madison, Wisconsin. Wisconsin has 1,683 wins through the end of the 2022–23 season which is top 50 all-time among Division I college basketball programs. Wisconsin has appeared in the NCAA tournament 27 times.