Meaning of the surname Alonso
Alonso is a Germanic surname of the patronymic type meaning "noble and ready". It is one of the 200 most common surnames 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 Alonso appears as either half of a pair: Alonso García, López Alonso. Read how the two-surname system works.