Family name Marcelo Alfonso (Marcelo Alfonso 
) , all over the world, is a rare cognomen. The last name Marcelo Alfonso is characteristic of Latin America and the Caribbean, particularly Chile, where it is quite a rare surname. More frequently, Marcelo Alfonso is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Marcelo Alfonso | Peru, Philippines, Spain, Chile, Ecuador |