Robert Mulock Bentley (born 3 November 1958) is a former first-class cricketer who played for both his native Rhodesia and Natal in the Currie Cup. Bentley lined up for Rhodesia for the first time in the 1978/79 Currie Cup. In the following season's campaign the team was renamed Zimbabwe-Rhodesia before the county became fully independent in 1980. Later that year he represented Zimbabwe in two first-class matches against Middlesex who were touring the country. While many of his teammates went on to play One Day International cricket for Zimbabwe, Bentley instead moved to South Africa and joined Natal. He was a regular batsman in the middle order at Natal, often at three, throughout the 1980s and early 1990s.