William Quinn Buckner, commonly known as Quinn Buckner (born August 20 1954 in Phoenix, Illinois) is a former American professional basketball player and coach. He played collegiately at Indiana University, and was selected by the Milwaukee Bucks with the 7th pick of the 1976 NBA Draft. He had a ten-year NBA career for three different teams (the Bucks, the Boston Celtics, and the Indiana Pacers). Throughout his career he was a solid defensive player, and made the 2nd team All-Defense four times. In 1984 he won an NBA title with the Celtics.

In addition to his playing career, Buckner was the head coach of the Dallas Mavericks for one year, from 1993 to 1994. Currently, Buckner is a color analyst for the Indiana Pacers cable television broadcast team. Quinn also was the play-by-play announcer on 989 Sports line of college basketball games for several years.

He is a member of Alpha Phi Alpha, the first intercollegiate Greek-letter fraternity established for African Americans.