Jack Nicklaus wins the 80th U.S. Open

The 1980 United States Open Golf Championship was the 80th U.S. Open.

The event was held from June 12-15, 1980 at Baltusrol Golf Club, Lower Course in Springfield Township, Union County, New Jersey. Jack Nicklaus won his fourth U.S. Open and 16th major title by two strokes over Isao Aoki.