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Surname Riehm (Рим
, ريهم
, Riehm
) , across the world, is quite a rare last name. The last name Riehm is habitual in Germany, where it is quite a rare surname, Kyrgyzstan, where it is a rare surname, and Ukraine. Not in comparison with a country's population, the name is most common in Germany, the United States, and Russia. More prevalently, Riehm is the forename as well as the last name.