Meaning of the surname Muñoz
Muñoz is a Spanish surname of the patronymic type meaning "son of Muño". It is one of the 50 most common surnames in Mexico. Fortieth in Mexico.
About this meaning. The etymology is uncertain or the popular reading is folk etymology. The page gives the best-supported explanation.
Formed from a father's given name with the suffix -ez, -es, or -iz, meaning 'son of'. Hernández is the son of Hernando, Martínez the son of Martín. About half of the most common Mexican surnames are patronymics.
In Mexico a person carries two surnames, the father's and then the mother's, so Muñoz appears as either half of a pair: Muñoz García, López Muñoz. Read how the two-surname system works.