Cognomen Zambrano Barreto (Zambrano Barreto 
) , all around the world, is a rare surname. The surname Zambrano Barreto is characteristic of Latin America and the Caribbean, particularly Ecuador, where it is quite a rare surname, and Chile, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Zambrano Barreto | Chile, Ecuador |
Jose Miguel, Edmundo Cayetano, Ana Marianela, and Francisco Nivaldo