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Family name Biong (Biong , بيونغ) , around the world, is quite a common last name. The cognomen Biong is characteristic of Seychelles, where it is quite a common surname, Philippines, where it is quite a rare surname, and Norway. Not in comparison with a country's population, the name is most common in Philippines, the Democratic Republic of the Congo, and Sudan. Much less frequently, Biong is the forename as well as the last name.