Cognomen Piero Alvaro (Piero Alvaro 
) , in all the world, is an extremely rare family name. The surname Piero Alvaro is characteristic of Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. More prevalently, Piero Alvaro is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Piero Alvaro | Chile, Peru |
Scelta, and Salazar Calle