A Spanish and Portuguese surname of Diaz comes from the original Latin term of ‘dies’ means days. It is related to the Spanish surname of Diego.

Other spelling forms of Diaz are Dias and Diez.

Very few Diaz surnames are in Ireland, Wales and Scotland and only a few in England.
Rather, Diaz is very common surname in most of the Latin American countries, approximately 25 percent of all surnames. The Diaz surname is also in Southern Italy back when Spain controlled the southern region in the 17th century.

In England the county of Lancashire has a very high number of individuals with the Diaz surname. In Midlowthian county of Scotland there is also a high percent of people with the Diaz name.

The states of Florida, Texas, New Mexico and California within the United States have higher numbers with the surname of Diaz.

Famous: Portirio Diaz (19th century president of Mexico), Cameron Diaz (actress), Junot Diaz (writer), Rodrigo Diaz (known as El Cid - 11th century ruler of Spain), Alyssa Diaz (actress) and Xavier Diaz (actor).