Hale S. Irwin is an American professional golfer. He is one of the few players in history to have won three U.S. Opens and was one of the world's leading golfers for much of the 1970s and 1980s. He is the uncle of Heath Irwin.

Irwin was born in Joplin, Missouri. He graduated from the University of Colorado in 1967, where he was a two-time All-Big Eight defensive back, as well as an academic All-American in football. He won the individual NCAA Division I Championship in golf in 1967 and turned professional the following year.