William "Bo" Francis Ryan, Jr. (born December 20, 1947 in Chester, Pennsylvania, United States) is the current head coach of the University of Wisconsin-Madison men's basketball team. Ryan is the current leader in overall winning percentage in the entire NCAA among coaches with at least twenty years of head coaching experience (including Divisions II and III).
On January 27, 2007 the University of Wisconsin-Platteville officially honored Ryan's 15-year tenure by naming their basketball court "Bo Ryan Court". Ryan, along with the 2007 Wisconsin Badger team attended the event.
On the strength of his success at Platteville, Ryan was hired as head coach at Milwaukee for the 1999-2000 season. In his two seasons as coach, the team had its first back-to-back winning seasons in nearly a decade.
Ryan also brought a 161% increase in home attendance at Milwaukee, giving the program a new energy that continued into the tenure of his successor Bruce Pearl.
Following the Badgers' 2000 Final Four run, head coach Dick Bennett retired two games into the 2000-2001 season. Assistant coach Brad Soderberg finished the season as interim head coach, but was not retained by the University. The coaching search began to concentrate on Rick Majerus of the University of Utah (who was a Milwaukee native) and Bo Ryan. Majerus pulled his name out of consideration, and the decision was made to hire Bo Ryan as head coach of the Wisconsin Badgers men's basketball team.
Ryan's first season was much more successful than anticipated. The team was predicted to finish as low as ninth in the Big Ten in pre-season polls. The team, lead by Kirk Penney, surprisingly tied with three other teams for the 2002 Big Ten Championship and received an invitation to the NCAA Tournament. The Badgers once again won the Big Ten championship in the 2002-2003 season and advanced to the "Sweet Sixteen" in the NCAA Tournament. The Badgers won the Big Ten Tournament Championship in 2004, led by Devin Harris, and once again received an NCAA Tournament invitation. In the 2004-2005 season, Wisconsin advanced to the "Elite Eight" in the NCAA Tournament, losing to the eventual national champion, the University of North Carolina at Chapel Hill Tar Heels. On December 10, 2005, Ryan recorded his 100th victory as Wisconsin head coach by defeating in-state rival Marquette.
In the 2006–2007 season, Ryan led the Badgers to the pinnacle of college basketball, helping them achieve their first top-five ranking and #1 ranking in the AP poll in the school's history. However, this would last only a week, as they lost their following two games to Michigan State and Ohio State. The Wisconsin-Ohio State game on February 25, 2007, featured two teams ranked #1 in that week's national polls, with Ohio state securing the top ranking in the Coaches poll. The following week they rebounded with a 52-50 win at home over Michigan State and again defeated Michigan State in the Big Ten tournament, increasing Ryan's record against Tom Izzo to 11-3, before losing the Big Ten Tournament championship game to Ohio State. In 2007, Bo was named the winner of the Clair Bee Coach of the Year Award.
