Worldwide, Arnold Antonio (Arnold Antonio 
) is a very rare male given name. The forename Arnold Antonio is habitual in Latin America and the Caribbean, particularly Costa Rica, where it is a rare masculine name, Peru, where it is a very rare male name, and Chile. Not in comparison with a country's population, the name is most common in Peru, Costa Rica, and Philippines. Very seldom, Arnold Antonio is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Arnold Antonio | Costa Rica, Peru, Philippines, Ecuador, Chile |