John Joseph Farrell (April 1, 1901 – June 14, 1988) was an American professional golfer, best known for winning the U.S. Open in 1928.

At the 1928 U.S. Open, held at Olympia Fields Country Club near Chicago, Farrell tied with amateur Bobby Jones, then a two-time champion, after the regulation 72 holes and won the 36-hole playoff by one stroke.

[1][2] In 1934, Farrell accepted the head professional job at Baltusrol Golf Club in Springfield, New Jersey.

In 1948, the AP's Frank Eck reported that there had been, to that point, eight rounds as low as 62 posted in competitive golf, and that Farrell had been the first to do so, in the late 1920s,[3] at the La Gorce Country Club course in Miami Beach.

Billy Farrell played professional golf and is best known for being the first ever to hit the 630-yard (576 m) par-5 17th hole at Baltusrol's Lower Course in two shots, which he did during the 1967 U.S. Open.