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Surname キョウコ (Kyoko , キョウコ , Kyouko ) , worldwide, is a widespread family name. The family name キョウコ is habitual in Japan, where it is quite a common surname, Singapore, where it is a rare surname, and Indonesia, where it is a very rare surname. Not in comparison with a country's population, it most frequently occurs in Japan, China, and Indonesia. Very seldom, キョウコ is the forename as well as the last name.