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Cognomen روبی (Robi , Robbie , Robie ) , worldwide, is a common surname. The family name روبی is habitual in Oman, where it is quite a common surname, Bangladesh, and Bahrain, where it is quite a rare surname. Measured by absolute frequency, it is the most numerous in Bangladesh, Indonesia, and the United States. More prevalently, روبی is the forename as well as the last name.