Family name Biaga (Biaga 
) , all around the world, is a rare cognomen. The last name Biaga is characteristic of Cameroon, where it is a rare surname, Philippines, where it is a very rare surname, and Nigeria, where it is an extremely rare surname. Not in comparison with a country's population, the name is most common in Cameroon, Philippines, and India. Very seldom, Biaga is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Biaga | Italy, Nigeria, Philippines, Cameroon, India |