Rodney Craig Ontong (born 9 September 1955 in Johannesburg) is a former first-class cricketer who played for Glamorgan County Cricket Club in England and various South African teams. Ontong, who was coloured, originally came to England from South Africa to pursue a football career and had trials with Chelsea in the early 1970s. He didn't impress enough to join their books, instead turning to cricket, as he had been having success as a club cricketer in London. The South African earned a place on the MCC groundstaff and coach Len Muncer later recommended him to Glamorgan, Muncer's former county. Ontong made his Glamorgan debut against the touring Australian team at Swansea in 1975.