Surname Эрка (Эрка 
) , around the globe, is an extremely rare last name. The cognomen Эрка is characteristic of Central Asia, particularly Kyrgyzstan, where it is a very rare surname. More prevalently, Эрка is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Эрка | Kyrgyzstan, Kazakhstan, Russia |