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In all the world, Hsü (旭 , 许 , 胥 , and others...) is a widespread gender-neutral given name. The first name Hsü is habitual in Eastern Asia, particularly China, where it is quite a common unisex name. More prevalently, Hsü is the last name as well as the forename.
Hsü is also a name for the fictitious and mythical characters: Bao Xu , the Water Margin character.