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Cognomen Chuku (Chuku , Чуку ) , in the world, is a widespread surname. The cognomen Chuku is characteristic of Nigeria, where it is quite a common surname, Japan, where it is quite a rare surname, and Ghana, where it is a rare surname. Measured by absolute frequency, it most frequently occurs in Nigeria, Japan, and India. Also, Chuku is the forename as well as the last name.