Cognomen Ermenkova (Ermenkova 
) , globally, is a rare last name. The cognomen Ermenkova is habitual in Bulgaria, where it is quite a rare surname, Canada, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Ermenkova | Bulgaria, United States, Canada |
| kati︠a︡ ermenkova (b. 1955) |
|