Cognomen Eftimov-Opel (Eftimov-Opel 
) , in the world, is a very rare surname. The cognomen Eftimov-Opel is habitual in Western Europe, particularly Germany, where it is a very rare surname. Parts of the name also exists independently as a last name Eftimov, and a last name Opel.
| VARIANT | COUNTRY |
|---|---|
| Eftimov-Opel | Germany |