All around the world, Oliia (Олия 
, Олииа , Oliia 
) is a rare feminine forename. The first name Oliia is characteristic of Kyrgyzstan, where it is quite a rare feminine name, Russia, where it is a rare girly name, and Kazakhstan. Very seldom, Oliia is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Олия | Kazakhstan, Belarus, Kyrgyzstan, Russia, Ukraine |
| Олииа | Russia |
| Oliia | Brazil, United States, Russia, India |