Cognomen Cerna Muñoz (Cerna Muñoz 
) , in all the world, is a very rare surname. The last name Cerna Muñoz is characteristic of Latin America and the Caribbean, particularly Chile, where it is a rare surname, Ecuador, where it is a very rare surname, and Peru, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Cerna Muñoz | Peru, Ecuador, Chile |