Worldwide, Sergio Hernan (Sergio Hernan 
) is quite a common masculine forename. The first name Sergio Hernan is characteristic of Latin America and the Caribbean, particularly Chile, where it is quite a common boy's name, Peru, where it is a rare male name, and Costa Rica. Measured by absolute frequency, it most frequently occurs in Latin America and the Caribbean, particularly Chile, Argentina, and Peru. Much less frequently, Sergio Hernan is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Sergio Hernan | Argentina, Peru, Ecuador, Spain, Chile |