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Family name Thyen (赛恩 , Thyen ) , in all the world, is quite a rare surname. The surname Thyen is characteristic of Paraguay, where it is quite a rare surname, Germany, where it is a rare surname, and Malaysia. Not in comparison with a country's population, the name is most common in Germany, the United States, and Paraguay. Much less frequently, Thyen is the forename as well as the last name.