Cognomen Ильяз (Ильяз 
, Iliaz 
) , around the globe, is quite a rare family name. The surname Ильяз is habitual in Kyrgyzstan, where it is quite a common surname, Georgia, where it is quite a rare surname, and Bulgaria. More prevalently, Ильяз is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ильяз | Azerbaijan, Kyrgyzstan, Russia, Kazakhstan, Belarus |
| Iliaz | Bulgaria, Georgia, Greece, Albania, India |