Surname Kuryshchuk (Kuryshchuk 
, Курищук 
) , in all the world, is a rare last name. The last name Kuryshchuk is habitual in Ukraine, where it is a rare surname, Estonia, and Russia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kuryshchuk | Ukraine, Estonia |
| Курищук | Ukraine, Russia |