Surname Arnoldo Antonio (Arnoldo Antonio 
) , all over the world, is a rare last name. The family name Arnoldo Antonio is habitual in Latin America and the Caribbean, particularly Chile, where it is a rare surname. More prevalently, Arnoldo Antonio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Arnoldo Antonio | Argentina, Ecuador, Chile, El Salvador, Costa Rica |