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Cognomen Serano (Serano , Серано , סרנו ) , in the world, is quite a rare surname. The cognomen Serano is habitual in Belize, where it is quite a common surname, Panama, where it is quite a rare surname, and Cameroon, where it is a rare surname. Measured by absolute frequency, it most frequently occurs in Philippines, the United States, and Italy. Much less frequently, Serano is the forename as well as the last name.