Cognomen Ichtchouk (Ищук 
, Ichtchouk 
) , across the world, is quite a rare last name. The family name Ichtchouk is characteristic of Belarus, where it is quite a rare surname, Russia, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Ищук | Ukraine, Kazakhstan, Russia, Belarus, Kyrgyzstan |
| Ichtchouk | United States |