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Cognomen Cephas (Cephas , Сепас , Keefas ) , worldwide, is quite a common surname. The cognomen Cephas is habitual in Liberia, where it is quite a rare surname, Ghana, and Jamaica. Not in comparison with a country's population, it is the most numerous in Ghana, Nigeria, and the United States. More prevalently, Cephas is the forename as well as the last name.