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Cognomen Arpa (Arpa , อาภา , Harpa ) , throughout the world, is a common surname. The cognomen Arpa is habitual in Malta, where it is quite a common surname, Turkey, where it is quite a rare surname, and Romania. Not in comparison with a country's population, the name is most common in Turkey, Bangladesh, and Indonesia. Likewise, Arpa is the forename as well as the last name.