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Surname Hiura (勉 , ヒウラ , Hiura ) , all around the world, is quite a common family name. The surname Hiura is habitual in China, where it is a rare surname, Hong Kong, and Peru, where it is a very rare surname. In absolute terms, it is commonest in China, the United States, and Indonesia. More prevalently, Hiura is the forename as well as the last name.