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Around the globe, Kayo (Kayo , Kajo , カヨ ) is a common epicene forename. The first name Kayo is characteristic of Brazil, where it is quite a rare boy's name, Croatia, and Ethiopia, where it is a rare boy's name. Not in comparison with a country's population, it is the most numerous in Brazil, India, and Nigeria. Also, Kayo is the last name as well as the forename.
Kayo is also a name for the fictitious and mythical characters: Kayo Fujikawa , the Magic of Stella's character, Stella no Mahō.