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Cognomen Ciss (Ciss
, سيس
, シス
) , globally, is a common last name. The last name Ciss is habitual in Senegal, where it is a common surname, Gambia, where it is quite a rare surname, and Latvia. Not in comparison with a country's population, this name is the most popular in Senegal, Morocco, and Sudan. Very seldom, Ciss is the forename as well as the last name.