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In all the world, Aiba (Aiba , Айба , Аиба ) is a rare epicene first name. The first name Aiba is habitual in Guinea, where it is a rare masculine name, Kazakhstan, where it is a rare gender-neutral name, and Philippines, where it is a very rare primarily girly, but scarcely masculine name. Measured by absolute frequency, this name is the most popular in India, Guinea, and Nigeria. More frequently, Aiba is the last name as well as the forename.