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Throughout the world, Mairo (Mairo ) is quite a common gender-neutral first name. The first name Mairo is habitual in Nigeria, where it is quite a rare predominantly girly, but very infrequently masculine name, Cameroon, where it is quite a rare female name, and Nicaragua, where it is a rare boy's name. Not in comparison with a country's population, it most frequently occurs in Nigeria, India, and Cameroon. Likewise, Mairo is the last name as well as the forename.