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Across the world, Oyo (Oyo ) is quite a common principally male, but scarcely feminine first name. The forename Oyo is habitual in Guam, where it is quite a common male name, Indonesia, where it is quite a rare boy's name, and Nigeria, where it is a rare gender-neutral name. Measured by absolute frequency, it is commonest in Indonesia, Nigeria, and China. Likewise, Oyo is the last name as well as the forename.