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