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Around the world, Onu (Onu , Ону ) is a common gender-neutral first name. The given name Onu is habitual in Nigeria, where it is quite a common unisex name, Bangladesh, where it is a rare epicene name, and Romania, where it is a rare boy's name. In absolute terms, the name is most common in Nigeria, Bangladesh, and India. Likewise, Onu is the last name as well as the forename.