Cognomen Pia Loreto (Pia Loreto 
) , globally, is a rare family name. The cognomen Pia Loreto is habitual in Latin America and the Caribbean, particularly Chile, where it is a rare surname. More prevalently, Pia Loreto is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Pia Loreto | Ecuador, Chile |