Roy Allen Williams is an American retired college basketball coach who served as the men's head coach for the North Carolina Tar Heels for 18 seasons and the Kansas Jayhawks for 15 seasons. He was inducted into the College Basketball Hall of Fame in 2006 and the Basketball Hall of Fame in 2007. Williams is widely regarded as one of the best collegiate basketball coaches of all time.

The North Carolina Tar Heels Men's basketball program is a college basketball team of the University of North Carolina at Chapel Hill. The Tar Heels have won six NCAA championships in addition to a 1924 Helms Athletic Foundation title (retroactive). North Carolina has won a record 133 NCAA tournament matchups while advancing to 31 Sweet Sixteen berths, a record 21 Final Fours, and 12 title games. It is the only school to have an active streak of reaching the National Championship game for nine straight decades and at least two Final Fours for six straight decades, all while averaging more wins per season played (20.7) than any other program in college basketball. In 2012, ESPN ranked North Carolina No. 1 on its list of the 50 most successful programs of the past fifty years.