Last name Cristian Sergio (Cristian Sergio 
) , around the globe, is a rare cognomen. The last name Cristian Sergio is characteristic of Latin America and the Caribbean, particularly Chile, where it is a rare surname. More frequently, Cristian Sergio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cristian Sergio | Peru, Argentina, Spain, Chile, Ecuador |