Cognomen Claudio Sergio (Claudio Sergio 
) , worldwide, is a rare family name. The last name Claudio Sergio is characteristic of Chile, where it is a rare surname, and Spain, where it is a very rare surname. More prevalently, Claudio Sergio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Claudio Sergio | Spain, Brazil, Italy, Chile, Peru |