Last name Billani (Billani 
) , in all the world, is a rare surname. The cognomen Billani is characteristic of Argentina, where it is a rare surname, India, where it is a very rare surname, and Philippines. Very seldom, Billani is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Billani | Italy, Philippines, India, Argentina, Peru |