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Cognomen Cefalo (Cefalo , Cephalus ) , throughout the world, is quite a rare family name. The family name Cefalo is habitual in Italy, where it is quite a rare surname, the United States, where it is a rare surname, and Venezuela, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Italy, the United States, and Brazil. Very seldom, Cefalo is the forename as well as the last name.