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Around the world, 于 (于 , 우
, Yü
) is a common unisex first name. The first name 于 is habitual in Eastern Asia, particularly China, where it is quite a rare unisex name, and South Korea, where it is a rare gender-neutral name. Much more prevalently, 于 is the last name as well as the forename.
于 is also a name for the fictitious and mythical characters: .