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Across the world, Dayo (Dayo , ダイオ , دايو ) is a common mostly boy's, but infrequently girly given name. The first name Dayo is characteristic of Nigeria, where it is quite a common dominantly masculine, but seldom feminine name, Ethiopia, where it is a rare dominantly boy's, but infrequently girly name, and Ireland, where it is a rare boy's name. Not in comparison with a country's population, it is the most numerous in Nigeria, India, and Ethiopia. Also, Dayo is the last name as well as the forename.