Family name Billena (Billena 
) , in all the world, is quite a rare surname. The family name Billena is characteristic of Philippines, where it is quite a rare surname, Singapore, where it is a rare surname, and Argentina. In absolute terms, the name is most common in Philippines, the United States, and Argentina. Much less frequently, Billena is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Billena | Philippines, Argentina, Peru, Singapore, United States |