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Family name Diez (Diez
, Dies
, Diyes
) , around the world, is a common cognomen. The family name Diez is characteristic of British Virgin Islands, where it is quite a common surname, Spain, and Argentina (explore the name in all countries). Not in comparison with a country's population, it is commonest in Spain, Argentina, and Philippines. Also, Diez is the forename as well as the last name.