Origins of the surname DiazThe distinguished surname diaz comes from Spain, a country rich in culture and history. The earliest forms of hereditary surnames in Spain were the patronymic surnames, which are derived from the father's given name, and metronymic surnames, which are derived from the mother's given name. Spanish patronymic names emerged as early as the mid-9th century and the most common patronymic suffix is ez.
Spelling variations of this family name include: Díaz, Diaz, Didaz, Díez, Diez, Diz, Diago and others.
First found in Castile, where the name originated in Visigothic times.
Some of the first settlers of this family name or some of its variants were: Bernal Díaz del Castillo travelled to Cuba, then accompanied Hernán Cortés to Mexico; he wrote the famous "True History of the Discovery of New Spain." Other members of the family who were early emigrants to Spain's colonies in the New World included Luis, who emigrated to Cuba in 1561. -- www.houseofnames.com