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Surname コッコ (Cocco , Kokko , コッコ ) , in the entire world, is a common family name. The cognomen コッコ is characteristic of Finland, where it is quite a common surname, Italy, and Maldives, where it is quite a rare surname. Measured by absolute frequency, the name is most common in Italy, Finland, and Argentina. Very seldom, コッコ is the forename as well as the last name.