Cognomen Tikhontchouk (Tikhontchouk 
, Тихончук 
) , around the world, is quite a rare family name. The cognomen Tikhontchouk is habitual in Eastern Europe, particularly Belarus, where it is quite a common surname, Ukraine, where it is quite a rare surname, and Russia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Tikhontchouk | Mexico |
| Тихончук | Kazakhstan, Ukraine, Belarus, Kyrgyzstan, Russia |