|Born||December 6, 1957|
|Listed height||6 ft 7 in (2.01 m)|
|Listed weight||185 lb (84 kg)|
|College||Notre Dame (1976–1980)|
|NBA draft||1980 / Round: 1 / Pick: 20th overall|
|Selected by the Seattle SuperSonics|
|Position||Shooting guard / Small forward|
|1991–1996||Charlotte Hornets (assistant)|
|1996–1997||Atlanta Hawks (assistant)|
|Career highlights and awards|
|Career NBA statistics|
|Points||5,414 (7.2 ppg)|
|Rebounds||2,058 (2.8 rpg)|
|Assists||2,058 (2.8 apg)|
|Stats at NBA.com|
|Stats at Basketball-Reference.com|
William Henry Hanzlik (born December 6, 1957) is an American former professional basketball player and coach.
A 6'7" guard, Hanzlik played college basketball at the University of Notre Dame. He was selected for the 1980 US Men's Olympic Team, which did not compete due to the US's boycott of the Moscow Games. However, in 2007 he did receive one of 461 Congressional Gold Medals created especially for the spurned athletes.
He was selected with the 20th pick of the 1980 NBA draft by the Seattle SuperSonics. A defensive specialist, at the time of his selection Hanzlik had the lowest college scoring average (7.2 ppg) for any player selected in the first round of the draft. Hanzlik played in the NBA for ten years – two with the Sonics and eight with the Denver Nuggets. He was a 1986 All-Defense second team selection. He worked as an assistant with the Charlotte Hornets and Atlanta Hawks in the 1990s.
In 1997, Hanzlik (then an assistant with Atlanta) was tabbed to replace Dick Motta as head coach of the Denver Nuggets. He coached the Nuggets for one year, posting an 11-71 record (only two games better than the all-time worst team, the 1972–73 Philadelphia 76ers). He was fired at the end of the season and replaced with Mike D'Antoni. To date, Hanzlik owns the worst full-season record for a rookie coach in NBA history.