Surname Оспантаев (Оспантаев 
) , all around the world, is a rare last name. The family name Оспантаев is habitual in Azerbaijan, where it is quite a rare surname, Kazakhstan, where it is a rare surname, and Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Оспантаев | Kazakhstan, Russia, Azerbaijan |