Throughout the world, Neftali Alfonso (Neftali Alfonso 
) is a very rare boy's first name. The forename Neftali Alfonso is habitual in Latin America and the Caribbean, particularly Chile, where it is a rare boy's name. Very seldom, Neftali Alfonso is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Neftali Alfonso | Chile |