Family name Еркасов (Еркасов 
) , in the world, is a very rare last name. The cognomen Еркасов is characteristic of Kazakhstan, where it is a rare surname, and Russia, where it is a very rare surname. Very seldom, Еркасов is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Еркасов | Kazakhstan, Russia |