Last name Gustavo Hernán (Gustavo Hernán 
) , in all the world, is a very rare cognomen. The family name Gustavo Hernán is habitual in Southern Europe, particularly Spain, where it is a very rare surname. Likewise, Gustavo Hernán is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gustavo Hernán | Peru, Spain |