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All around the world, Хиен (Hien , Xien , Khien ) is a common gender-neutral forename. The first name Хиен is characteristic of Macao, where it is quite a common primarily female, but very infrequently masculine name, Vietnam, where it is quite a common epicene name, and Australia, where it is quite a rare unisex name. In absolute terms, it is the most numerous in Vietnam, the United States, and Macao. Likewise, Хиен is the last name as well as the forename.