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Across the world, Oneka (Oneka ) is a rare dominantly girly, but seldom boy's first name. The given name Oneka is characteristic of Barbados, where it is quite a rare female name, Trinidad and Tobago, and Spain, where it is a very rare gender-neutral name. In absolute terms, the name is most common in the United States, Nigeria, and Spain. Also, Oneka is the last name as well as the forename.