Family name Alfenia (Alfenia 
) , in all the world, is a rare cognomen. The surname Alfenia is habitual in Indonesia, where it is a very rare surname, and Brazil, where it is an extremely rare surname. Much less frequently, Alfenia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Alfenia | Brazil, United States, Indonesia, Philippines |