Throughout the world, Carlo Roberto (Carlo Roberto 
) is a very rare masculine first name. The first name Carlo Roberto is characteristic of Costa Rica, where it is a rare masculine name, Sweden, and Chile, where it is a very rare boy's name. Not in comparison with a country's population, the name is most common in Philippines, Peru, and Chile. Very seldom, Carlo Roberto is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Carlo Roberto | Costa Rica, Peru, Philippines, Sweden, Chile |