Cognomen Ферко-Деме (Ферко-Деме 
) , across the world, is an extremely rare family name. The last name Ферко-Деме is characteristic of Eastern Europe, particularly Ukraine, where it is an extremely rare surname. Parts of the name also exists independently as a last name Ферко, and a last name Деме.
| VARIANT | COUNTRY |
|---|---|
| Ферко-Деме | Ukraine |