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Family name Roja (Roja , Роя , 罗亚 ) , globally, is a common last name. The family name Roja is habitual in the Dominican Republic, where it is quite a common surname, Azerbaijan, and Panama, where it is quite a rare surname. Measured by absolute frequency, it is the most numerous in India, Argentina, and Philippines. More prevalently, Roja is the forename as well as the last name.