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Worldwide, Xǔ (许 , 許 , Xǔ ) is quite a common unisex given name. The first name Xǔ is habitual in Eastern Asia, particularly China, where it is a rare unisex name. Predominantly, Xǔ is the last name as well as the forename.
Xǔ is also a name for the fictitious and mythical characters: .