Surname أوليا (Olja 
, Evliya 
, Evlia 
) , throughout the world, is a rare family name. The cognomen أوليا is habitual in Serbia, where it is quite a rare surname, North Macedonia, and Indonesia, where it is a rare surname. More prevalently, أوليا is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Olja | Serbia, Croatia, Bosnia and Herzegovina, Montenegro, Indonesia |
| Evliya | France, United Kingdom, United States, Germany, Turkey |
| Evlia | United States, Georgia |