Jon Douglas
| Full name | Jon Alexander Douglas |
|---|---|
| Country (sports) | United States |
| Born | September 10, 1936 Hot Springs, Arkansas, US |
| Died | July 27, 2010 (aged 73) Brentwood, California, US |
| Height | 5 ft 10 in (178 cm) |
| Singles | |
| Grand Slam singles results | |
| French Open | 3R (1959) |
| Wimbledon | 3R (1961) |
| US Open | QF (1961) |
| Doubles | |
| Grand Slam doubles results | |
| Wimbledon | QF (1962) |
Jon Alexander "Jack" Douglas (September 10, 1936 – July 27, 2010) was an amateur American tennis player and college football quarterback.