Ralph Kok
| Country (sports) | Netherlands |
|---|---|
| Born | 18 October 1967 |
| Plays | Right-handed |
| Prize money | $36,729 |
| Singles | |
| Career record | 1–4 |
| Career titles | 0 |
| Highest ranking | No. 243 (10 July 1989) |
| Grand Slam singles results | |
| Wimbledon | 1R (1990) |
| Doubles | |
| Career record | 1–3 |
| Career titles | 0 |
| Highest ranking | No. 306 (20 March 1989) |
Ralph Kok (born 18 October 1967) is a former professional tennis player from the Netherlands.