All over the world, Alvaro Arnoldo (Alvaro Arnoldo 
) is a very rare boy's forename. The given name Alvaro Arnoldo is characteristic of Latin America and the Caribbean, particularly Chile, where it is a rare masculine name. Much less frequently, Alvaro Arnoldo is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Alvaro Arnoldo | Costa Rica, Chile, Peru |