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Throughout the world, Eo (Io , Eo , イオ ) is quite a common gender-neutral first name. The given name Eo is characteristic of Macao, where it is quite a common epicene name, Greece, where it is quite a rare girly name, and South Korea. In absolute terms, the name is most common in China, Indonesia, and South Korea. Also, Eo is the last name as well as the forename.
Eo is also a name for the fictitious and mythical characters: Io , the nymph seduced by Zeus in Greek mythology, Prometheus Bound; Eo , the operatic character in the opera Klothó – Thread of the Tales; Io , the fictional character from Princess Connect!, Princess Connect! Re:Dive; Io , the fictional character from Granblue Fantasy and Io Otonashi , the fictional character from Place to Place, among other works.