Surname Gaston Roberto (Gaston Roberto 
) , in the entire world, is a very rare last name. The cognomen Gaston Roberto is habitual in Latin America and the Caribbean, particularly Chile, where it is a rare surname. More prevalently, Gaston Roberto is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gaston Roberto | Italy, Argentina, Peru, Ecuador, Chile |