Cognomen Cibuliak (Cibuliak 
, Цибуляк 
) , in all the world, is quite a rare family name. The cognomen Cibuliak is habitual in Eastern Europe, particularly Ukraine, where it is quite a rare surname, Slovakia, and Czechia, where it is a rare surname. Not in comparison with a country's population, it is commonest in Eastern Europe, particularly Ukraine, Slovakia, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Cibuliak | Czechia, Slovakia |
| Цибуляк | Ukraine, Russia |