All around the world, Juan Arnoldo (Juan Arnoldo 
) is quite a rare masculine first name. The given name Juan Arnoldo is habitual in Latin America and the Caribbean, particularly Chile, where it is quite a rare male name, and Costa Rica. Much less frequently, Juan Arnoldo is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Juan Arnoldo | Spain, Chile, Mexico, Ecuador, Costa Rica |