The origin of the name Alvarez is Spain.

Although people were originally known only by their first names, it became necessary to adopt a second name to identify due to population growth.
The most common type of family name found in the region was the surname that derives from the name of the father.
During the Middle Ages the patronymic system adopted for surnames.

The nicknames as surnames usually reflected the physical characteristics of the first member of the lineage.
The local names describe a region or place where they lived the first members of the lineage.
Many Spanish surnames are influenced Germanic and Arabic words or names of places because of the occupation of both cultures in a period of time.

The name derives from the name Alvaro, who described people who were honest and fair.

Some variations of this family name include: Alvarez, albarazo, Alvaroz, Albaroiz, Alvariza, Alvar and others.

The origin of the name Alvarez is Castilla, where the name comes in the time it dominated the Visigoths.

Alvarez's last name is widespread throughout Spain and America