Family name Эркаева (Эркаева 
, Erkaeva 
) , across the world, is a very rare cognomen. The cognomen Эркаева is habitual in Kyrgyzstan, where it is a rare surname, Russia, where it is a very rare surname, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Эркаева | Kyrgyzstan, Kazakhstan, Russia |
| Erkaeva | Russia, Ukraine, United States |