Surname Kozayeva (Козаева 
, Kozayeva 
) , globally, is a rare last name. The surname Kozayeva is habitual in Russia, where it is a rare surname, Belarus, and Kazakhstan, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Козаева | Kazakhstan, Russia, Belarus |
| Kozayeva | Ukraine, United States |