Cognomen Ernais-Eskarsa (Ernais-Eskarsa 
) , in all the world, is an extremely rare surname. The last name Ernais-Eskarsa is characteristic of Eastern Europe, particularly Russia, where it is an extremely rare surname. Parts of the name also exists independently as a first name Ernais.
| VARIANT | COUNTRY |
|---|---|
| Ernais-Eskarsa | Russia |