Surname Ristkok (Ristkok 
) , worldwide, is a very rare family name. The cognomen Ristkok is habitual in Estonia, where it is quite a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ristkok | United States, Estonia |
| vassili ristkok (b. 1877) |
|
|
| jüri ristkok (b. 1919) |
|