Cognomen Siriuk (Siriuk 
, Siriiuk, Сирюк 
) , throughout the world, is a very rare family name. The family name Siriuk is characteristic of Kazakhstan, where it is a rare surname, Ukraine, where it is a very rare surname, and Russia, where it is an extremely rare surname. Very seldom, Siriuk is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Siriuk | Thailand |
| Сирюк | Ukraine, Russia, Kazakhstan |