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Cognomen Cassanos (Casse , Chesne , Chêne ) , around the world, is quite a common family name. The cognomen Cassanos is habitual in Mauritius, where it is quite a rare surname, France, and Senegal. Measured by absolute frequency, it is the most numerous in France, Argentina, and Senegal. Very seldom, Cassanos is the forename as well as the last name.