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Globally, 晟 (晟 , 성 , Shèng ) is a common primarily boy's, but very seldom girly given name. The first name 晟 is characteristic of Eastern Asia, particularly China, where it is quite a rare principally boy's, but very seldom female name, and South Korea, where it is a rare boy's name. Likewise, 晟 is the last name as well as the forename.
晟 is also a name for the fictitious and mythical characters: Guan Sheng , the Chinese novel Water Margin fictional character; Guo Sheng , the Water Margin character and Li Cheng , the fictional character in Water Margin.