John Benjamin Robertson (5 June 1906 – 5 July 1985) was a South African cricketer who played in three Test matches in 1935–36.
He played first-class cricket for Western Province from 1931 to 1932 to 1936–37 and had occasional bowling success, including taking six Griqualand West first-innings wickets for 22 runs in 1933–34.
Robertson played in the first three Tests of a five-match series that showed the limitations of the South African side against the great spin bowling combination of Clarrie Grimmett and Bill O'Reilly.
[5] The third match yielded two further wickets, but with that, his Test career was over, as an innings defeat left South Africa two down with two to play.
He reappeared in a non-first-class game in wartime, playing for the South African Combined Services side against Western Province and taking seven wickets in the match.