Family name Amanza (Amanza 
) , globally, is a rare cognomen. The family name Amanza is characteristic of Indonesia, where it is a very rare surname, Nigeria, and Philippines, where it is an extremely rare surname. Much less frequently, Amanza is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Amanza | Philippines, Mexico, Nigeria, United States, Indonesia |