Arthur D'Arcy "Bobby" Locke (20 November 1917 – 9 March 1987) was a South African professional golfer. He won four Open Championships, nine South African Opens, seven South African PGA Championships and 15 PGA Tour events. He was a prolific tournament winner in his native country, eventually accumulating 38 wins on the Southern Africa Tour (now the Sunshine Tour).
Locke was elected to the World Golf Hall of Fame in 1977. He was only the second member (after Gary Player) who did not come from either the United States or the United Kingdom. He died in Johannesburg, South Africa in 1987.