Ronald B. Duman (February 12, 1929 – June 9, 1968), was an American racing driver who competed in the USAC Championship Car series and the Indianapolis 500. Duman was an accomplished driver in sprints and midgets, and won the prestigious Little 500 at Anderson Speedway in 1959 and 1960. Duman was fatally injured in a crash at the 1968 Rex Mays Classic at the Milwaukee Mile.