Family name Olyia (Olyia 
) , throughout the world, is an extremely rare cognomen. The last name Olyia is characteristic of Sub-Saharan Africa, particularly Nigeria, where it is an extremely rare surname. More frequently, Olyia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Olyia | Nigeria, United States, Pakistan, France |