Cognomen الفيرس (Elfers 
, الفيرس 
, Elffers 
) , around the globe, is quite a rare family name. The surname الفيرس is characteristic of Libya, where it is quite a rare surname, Germany, and Netherlands. In absolute terms, it is the most numerous in Germany, the United States, and Netherlands.
| VARIANT | COUNTRY |
|---|---|
| Elfers | Germany, Spain, United States, Argentina, Netherlands |
| الفيرس | Libya |
| Elffers | Netherlands, South Africa, United Kingdom, United States |