Family name Efef (Efef 
) , worldwide, is a rare cognomen. The family name Efef is habitual in Australia, where it is a very rare surname, China, and France, where it is an extremely rare surname. Very seldom, Efef is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Efef | China, Australia, United States, India, France |