Around the world, Sergio Ernesto (Sergio Ernesto 
) is quite a rare masculine given name. The first name Sergio Ernesto is characteristic of Latin America and the Caribbean, particularly Chile, where it is quite a rare masculine name, Guatemala, where it is a rare male name, and Costa Rica. Not in comparison with a country's population, this name is the most popular in Latin America and the Caribbean, particularly Chile, Peru, and Guatemala. Much less frequently, Sergio Ernesto is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Sergio Ernesto | Mexico, Peru, Ecuador, Guatemala, Chile |