Cognomen Yerkhan (Ерхан 
, Yerkhan 
) , across the world, is a rare surname. The surname Yerkhan is habitual in Russia, where it is a rare surname, Bulgaria, and Kazakhstan. More prevalently, Yerkhan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ерхан | Bulgaria, Kazakhstan, Azerbaijan, Russia, Ukraine |
| Yerkhan | Russia, United States, Kazakhstan, China |