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Family name Kallis (Kallis , Каллис , קליס ) , all over the world, is quite a rare last name. The last name Kallis is characteristic of Cyprus, where it is quite a common surname, Greece, where it is quite a rare surname, and Estonia. Not in comparison with a country's population, it is the most numerous in Cyprus, Greece, and the United States. Very seldom, Kallis is the forename as well as the last name.