Last name Muñuz (Muñuz 
) , all over the world, is a rare surname. The last name Muñuz is habitual in Latin America and the Caribbean, particularly the Dominican Republic, where it is a rare surname, Bolivia, and Colombia, where it is a very rare surname. Much less frequently, Muñuz is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Muñuz | Spain, Bolivia, Mexico, Dominican Republic, Colombia |