In the world, Sergio Delfin (Sergio Delfin 
) is a rare boy's forename. The given name Sergio Delfin is habitual in Latin America and the Caribbean, particularly Paraguay, where it is quite a rare boy's name, and Chile, where it is a rare boy's name. Very seldom, Sergio Delfin is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Sergio Delfin | Paraguay, Mexico, Ecuador, Chile, Peru |