Last name Juan Arnoldo (Juan Arnoldo 
) , all around the world, is a rare cognomen. The last name Juan Arnoldo is characteristic of Chile, where it is quite a rare surname, and Spain, where it is a very rare surname. More frequently, Juan Arnoldo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Juan Arnoldo | Mexico, Spain, Ecuador, Chile, Costa Rica |