Arthur D'Arcy "Bobby" Locke was one of the first internationally successful South African golfers.

Locke was born in Germiston, South Africa. He played in his first British Open in 1936, when he was eighteen, and finished as low amateur. He turned professional two years later and was a prolific tournament winner in his native country, eventually accumulating 38 wins on the Southern Africa Tour . His golf career was interrupted by service in the South African Air Force during World War II.