The 1977 U.S. Open was the 77th U.S. Open, held June 16–19 at Southern Hills Country Club in Tulsa, Oklahoma. Hubert Green won the first of his two major titles, one stroke ahead of runner-up Lou Graham, the 1975 champion. This year marked the final U.S. Open appearance by Sam Snead, two-time champion Julius Boros, and Tommy Bolt, who had won the 1958 Open at Southern Hills. All three received exemptions by the USGA, and all three missed the cut. This was the first time that the television broadcast of the U.S. Open covered all 18 holes of the final round.