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Cognomen Arwas (Arwas ) , in the entire world, is a rare family name. The family name Arwas is habitual in Switzerland, where it is a rare surname, Netherlands, where it is a very rare surname, and the United Kingdom. Not in comparison with a country's population, it most frequently occurs in the United Kingdom, the United States, and Venezuela. Much less frequently, Arwas is the forename as well as the last name.