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