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Worldwide, Oniel (Oniel , 奥尼尔 , Онил ) is quite a rare masculine first name. The forename Oniel is habitual in Latin America and the Caribbean, particularly Jamaica, where it is quite a common boy's name, the Dominican Republic, where it is quite a rare male name, and Bahamas. In absolute terms, it is commonest in Jamaica, the Dominican Republic, and the United States. Very seldom, Oniel is the last name as well as the forename.
Oniel is also a name for the fictitious and mythical characters: .