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Throughout the world, จอ (Cho , จอ , Screen ) is a common epicene first name. The first name จอ is characteristic of Mongolia, where it is a widespread gender-neutral name, Hong Kong, where it is quite a common epicene name, and Cameroon. Not in comparison with a country's population, it is the most numerous in Mongolia, China, and Cameroon. Likewise, จอ is the last name as well as the forename.
จอ is also a name for the fictitious and mythical characters: Cho Chang , the Harry Potter character, Harry Potter and the Goblet of Fire; Cho Hakkai , the fictional character from Saiyuki and Cho Sang-woo .