Family name Fermin Antonio (Fermin Antonio 
) , all around the world, is a rare surname. The surname Fermin Antonio is characteristic of Chile, where it is a rare surname, Spain, and Venezuela, where it is an extremely rare surname. More prevalently, Fermin Antonio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fermin Antonio | Peru, Dominican Republic, Spain, Chile, Ecuador |