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Cognomen Kyu-Jin (규진 , Kyu-Jin ) , in the entire world, is an extremely rare family name. The family name Kyu-Jin is habitual in Hungary, where it is a very rare surname, and the United States, where it is an extremely rare surname. Predominantly, Kyu-Jin is the forename as well as the last name. Parts of the name also exists independently as a first name Kyu, and a last name Jin.