Arthur Jonathan Wall Jr. (November 25, 1923 – October 31, 2001) was an American professional golfer, best known for winning the Masters Tournament in 1959.

He and his younger brother "Dewey" caddied for their parents, starting around age ten, and began playing shortly after.

Dewey was killed at the age of 20 in October 1944 when his submarine USS Shark was sunk in the Pacific Ocean near Taiwan.

[11][12] In the final round in 1959, he birdied five of his last six holes to shoot a 66 and overtake Cary Middlecoff and defending champion Arnold Palmer.

Wall is also notable for sinking 45 holes-in-one in his playing career (including casual rounds), a world record for many years.