Last name Mazú (Mazú 
) , in all the world, is an extremely rare cognomen. The cognomen Mazú is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname, and Peru, where it is an extremely rare surname. Much less frequently, Mazú is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mazú | Peru, Chile |