Cognomen Ridderplaat (Ridderplaat 
) , globally, is an extremely rare surname. The last name Ridderplaat is habitual in Western Europe, particularly Netherlands, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ridderplaat | Netherlands |
| cedric ridderplaat Curaçaoan singer-songwriter and artist, CW (b. 1944) |
|