Cognomen Melchor Segundo (Melchor Segundo 
) , in the entire world, is an extremely rare surname. The cognomen Melchor Segundo is characteristic of Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More prevalently, Melchor Segundo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Melchor Segundo | Chile, Peru, Ecuador |