Family name Mario Italo (Mario Italo 
) , throughout the world, is a very rare last name. The surname Mario Italo is habitual in Latin America and the Caribbean, particularly Chile, where it is a rare surname. More frequently, Mario Italo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mario Italo | Brazil, Argentina, Chile, Peru, Ecuador |