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Globally, Йо (Yo , Йо ) is a common epicene forename. The first name Йо is habitual in Macao, where it is quite a common epicene name, Mauritius, and Hong Kong (explore the name in all countries). Measured by absolute frequency, this name is the most popular in Egypt, Indonesia, and Hong Kong. Also, Йо is the last name as well as the forename.
Йо is also a name for the fictitious and mythical characters: Jo March , the fictional character from Louisa May Alcott's Little Women; Jo Grant , the fictional character, Doctor Who; Ultra Boy , the DC Comics character, Superman: The Animated Series; Jo Danville , the fictional character, CSI: NY and Jo Reynolds , the soap opera character, Melrose Place, among other works.