Last name Oktaj (Oktaj 
) , around the world, is quite a rare family name. The surname Oktaj is habitual in Azerbaijan, where it is quite a common surname, and North Macedonia, where it is quite a rare surname. Likewise, Oktaj is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oktaj | Lithuania, United States, Azerbaijan, North Macedonia |