William Leon Garrett (April 4, 1929 – August 7, 1974) was a basketball player, coach, educator, and a college administrator who is best known as the first African American to regularly play on a Big Ten Conference varsity basketball team. Prior to becoming a college player for Indiana University (1947–51), the Shelbyville, Indiana, native led his Shelbyville High School basketball team to its first state high school basketball championship in 1947 and he was named Indiana Mr. Basketball. In 1959 Garrett coached Indianapolis's Crispus Attucks High School boys' basketball team to the state high school basketball championship title, making him the only Indiana Mr. Basketball to win a state championship as a player and as a coach.