William Leroy "Mack" McCarthy (born July 3, 1952) is the former head college basketball coach for East Carolina University. On March 6, 2010, athletic director Terry Holland announced that McCarthy would complete the season as head coach and then move to a fundraising role with East Carolina University. He served as head coach at the University of Tennessee at Chattanooga from 1985 to 1997, leading the Mocs to the 1997 Sweet Sixteen in the NCAA tournament. Over his 12-year tenure, he took the Mocs to seven postseason appearances (five to the NCAA Tournament), won/shared eight Southern Conference regular season titles and won the SoCon Tournament title five times. His overall record at UTC was 243–122.