South African golfer who won the British Open four times.

A meticulous putter who was considered among the best in golf, Locke won the Vardon Trophy for lowest scoring average among male professional golfers in 1946, 1950, and 1954. Nine times the winner of the South African Open championship (1935, 1937–40, 1946, 1950–51, and 1955) and six times the winner of the South African Professional championship, he was considered, with Gary Player, to be one of South Africa's greatest golfers.

The son of Irish immigrants, he won his first tournament at the age of 14. He served as a South African Air Force bomber pilot in World War II. After the war his victories included the Canadian Open (1947), the French Open (1952–53), and the German Open (1954). Before the war he twice was leading amateur in the British Open and won it in 1949, 1950, 1952, and 1957. Noted for his steady play, he finished in the top 10 in all but three of the 25 tournaments he entered in 1948. He wrote Bobby Locke on Golf (1953).