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Across the world, コー (Ko , Koh , Co , and others...) is a common epicene first name. The first name コー is habitual in Mongolia, where it is a common principally male, but very seldom female name, Singapore, where it is quite a common unisex name, and Macao (explore the name in all countries). Measured by absolute frequency, it is the most numerous in Myanmar, Egypt, and Mongolia. Also, コー is the last name as well as the forename.
コー is also a name for the fictitious and mythical characters: Ko Blinker and Ko Fan , the musical character in the musical San Toy; of The Emperor's Own.