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Cognomen Papp (Pappa , Papp , Папп ) , all over the world, is a common last name. The cognomen Papp is habitual in Hungary, where it is a widespread surname, Greece, where it is quite a common surname, and Slovakia (explore the name in all countries). Not in comparison with a country's population, this name is the most popular in Hungary, Greece, and the United States. Also, Papp is the forename as well as the last name.