Surname Sergio Delfin (Sergio Delfin 
) , in the world, is a very rare family name. The surname Sergio Delfin is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More prevalently, Sergio Delfin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sergio Delfin | Mexico, Paraguay, Peru, Ecuador, Chile |