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Family name ユキオ (Yukio , ユキオ ) , in the world, is a common surname. The last name ユキオ is habitual in Japan, where it is quite a common surname, Cyprus, where it is quite a rare surname, and Singapore, where it is a rare surname. Measured by absolute frequency, it is commonest in Japan, China, and Indonesia. Very seldom, ユキオ is the forename as well as the last name.