Last name Zambrano Barreno (Zambrano Barreno 
) , in all the world, is a very rare surname. The family name Zambrano Barreno is habitual in Latin America and the Caribbean, particularly Ecuador, where it is a rare surname, and Chile, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Zambrano Barreno | Chile, Ecuador |