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Cognomen Calos (Calos , 卡洛斯 , Calleux ) , in the entire world, is quite a rare family name. The cognomen Calos is characteristic of Moldova, where it is quite a rare surname, Philippines, where it is a rare surname, and the Dominican Republic. In absolute terms, this name is the most popular in Philippines, the United States, and France. Also, Calos is the forename as well as the last name.