Surname Oksentyuk (Oksentyuk 
, Оксентюк 
) , in all the world, is quite a rare family name. The cognomen Oksentyuk is habitual in Eastern Europe, particularly Ukraine, where it is quite a rare surname, Belarus, where it is a rare surname, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Oksentyuk | Russia, Ukraine |
| Оксентюк | Belarus, Russia, Kazakhstan, Ukraine |