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Family name ユミコ (Yumiko , ユミコ ) , all over the world, is a widespread cognomen. The surname ユミコ is characteristic of Japan, where it is quite a common surname, Hong Kong, where it is a rare surname, and Indonesia. In absolute terms, it is commonest in Japan, Indonesia, and China. Very seldom, ユミコ is the forename as well as the last name.