Cognomen Эршек (Эршек 
, Erchek, Ershek 
) , globally, is a very rare surname. The cognomen Эршек is characteristic of Russia, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Эршек | Russia |
| Ershek | United States |