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In the entire world, Mario Arnoldo (Mario Arnoldo
) is a rare boy's first name. The given name Mario Arnoldo is habitual in Latin America and the Caribbean, particularly Chile, where it is quite a rare male name, Costa Rica, where it is a rare masculine name, and Bolivia. Much less frequently, Mario Arnoldo is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Mario Arnoldo | Bolivia, Mexico, Ecuador, Chile, Costa Rica |