Cognomen Bertyaeva (Bertyaeva 
, Бертяева 
) , globally, is a rare last name. The cognomen Bertyaeva is habitual in Russia, where it is a rare surname, and Kazakhstan, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Bertyaeva | Russia |
| Бертяева | Kazakhstan, Russia |