Last name Carlo Gerardo (Carlo Gerardo 
) , around the globe, is an extremely rare cognomen. The family name Carlo Gerardo is characteristic of Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. More frequently, Carlo Gerardo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Carlo Gerardo | Philippines, Spain, Chile, Mexico, Peru |