| Full name | Ronald Winston Barnes |
|---|---|
| Country (sports) |
|
| Born |
January 1, 1941 Rio de Janeiro, Brazil |
| Died | December 13, 2002 (aged 61) New York City, New York |
| Turned pro | 1957 (amateur tour) |
| Retired | 1970 |
| Singles | |
| Grand Slam Singles results | |
| French Open | QF (1964) |
| Wimbledon | 3R (1958, 1963, 1966) |
| US Open | SF (1963) |
Ronald Winston Barnes (1 January 1941 – 13 December 2002), was a Brazilian professional tennis player who competed in the 1950s and 1960s.
Barnes reached the semifinals of the U.S. National Championships in 1963 (and the quarterfinals in 1967) and the quarterfinals of Roland Garros in 1964.