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Around the world, Yien (Yien , 义恩 , เยียน ) is quite a rare unisex first name. The first name Yien is characteristic of Sudan, where it is a rare boy's name, Singapore, where it is a rare feminine name, and Thailand, where it is a rare unisex name. Not in comparison with a country's population, it is the most numerous in China, Sudan, and Thailand. More frequently, Yien is the last name as well as the forename.