Cognomen Jonni Hernan (Jonni Hernan 
) , worldwide, is an extremely rare last name. The surname Jonni Hernan is characteristic of Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. Also, Jonni Hernan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jonni Hernan | Chile |