In all the world, Hernan Arnaldo (Hernan Arnaldo 
) is a very rare male forename. The given name Hernan Arnaldo is habitual in Latin America and the Caribbean, particularly Chile, where it is a rare male name, and Peru, where it is a very rare masculine name. Very seldom, Hernan Arnaldo is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Hernan Arnaldo | Ecuador, Chile, Peru, Argentina |