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Family name Ойо (Ojo , Hoyo , Ойо ) , across the world, is a widespread cognomen. The surname Ойо is characteristic of Nigeria, where it is a common surname, Panama, where it is quite a common surname, and Niger. Measured by absolute frequency, this name is the most popular in Nigeria, Niger, and the United States. Likewise, Ойо is the forename as well as the last name.