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Surname ヒロユキ (Hiroyuki , ヒロユキ ) , in all the world, is a widespread family name. The family name ヒロユキ is habitual in Japan, where it is a common surname, Singapore, where it is quite a rare surname, and Hong Kong, where it is a rare surname. In absolute terms, it is the most numerous in Japan, China, and Indonesia. Much less frequently, ヒロユキ is the forename as well as the last name.