The 1957 U.S. Open was the 57th U.S. Open, held June 12–15 at Inverness Club in Toledo, Ohio. Dick Mayer defeated defending champion Cary Middlecoff in an 18-hole playoff to win his only major title.
Amateur Billy Joe Patton owned the 36-hole lead, but fell back with consecutive 76s over the final two rounds to finish in 8th. The 54-hole lead was held by Jimmy Demaret, at 47 attempting to become the oldest U.S. Open champion. Mayer was a shot back, while Middlecoff, Julius Boros, and Roberto De Vicenzo were two back. With temperatures soaring in the final round with high humidity, Demaret was five-over through 11 holes. He rebounded with three birdies on the back nine to post a 72 and a 283 total, a shot out of the playoff. Mayer carded a 70 and a 282 total, while Middlecoff birdied the last to force a playoff. The Sunday playoff turned out to be a one-sided affair, as Mayer shot 72 to Middlecoff's 79. Temperatures were again in the high 90s and only one birdie was carded.
This U.S. Open witnessed the debut of 17-year-old amateur Jack Nicklaus, who had consecutive rounds of 80 and missed the cut. It was just the beginning for Nicklaus, however, as he would go on to win a record-tying four Open titles and a record 18 major championships. While Nicklaus was making his debut, three-time major winner Denny Shute was playing his last Open; he too missed the cut. Two-time champion Gene Sarazen, at 55 in his penultimate Open, also missed the cut. After receiving medical attention for a back ailment, four-time champion and pre-tournament favorite Ben Hogan withdrew prior to his first round on Thursday.
The course was scheduled to play to a length of 6,961 yards (6,365 m), but heavy rains caused several new tee boxes to become unplayable and the course was shortened by about 100 yards (90 m).
This was the third U.S. Open at Inverness, which hosted in 1920 and 1931. The U.S. Open returned in 1979 and the PGA Championship followed in 1986 and 1993.