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Surname Хироюки (Hiroyuki , Хироюки , Hirojuki) , throughout the world, is quite a common last name. The cognomen Хироюки is characteristic of Japan, where it is quite a rare surname, Singapore, and Hong Kong, where it is a rare surname. In absolute terms, it is commonest in Japan, China, and Indonesia. Also, Хироюки is the forename as well as the last name.