Cognomen Bilero (Bilero 
) , in all the world, is a very rare family name. The last name Bilero is characteristic of Southern Europe, particularly Albania, where it is quite a rare surname, and Greece, where it is a rare surname. Very seldom, Bilero is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bilero | Philippines, Greece, Albania |