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 | Kazakhstan, Russia, Bulgaria, Azerbaijan, Ukraine |
| Yerkhan | Kazakhstan, China, United States, Russia |