Last name Fermin Humberto (Fermin Humberto 
) , in the entire world, is a very rare surname. The last name Fermin Humberto is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More prevalently, Fermin Humberto is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fermin Humberto | Chile, Spain, Peru, Ecuador |