Meaning of the surname Ruiz
Ruiz is a Spanish surname of the patronymic type meaning "son of Ruy". It is one of the 50 most common surnames in Mexico. Twentieth in Mexico.
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 Ruiz appears as either half of a pair: Ruiz García, López Ruiz. Read how the two-surname system works.