Douglas Walker Robb
- Height 5' 10", Weight 190 lb.
Douglas "Scotty" Robb was a National League umpire from 1947 to 1952, working the 1950 and 1951 All-Star Games. He then worked some American League games in 1952 and 1953, switching leagues in May of 1952. He is one of only a very small number of umpires to have moved from one major league to another after the conclusion of the National Agreement of 1903 and the combining of the two leagues' umpiring staffs in 2000.