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Family name Kassen (Касен
, Kassen
, Кассен
) , throughout the world, is quite a rare cognomen. The last name Kassen is habitual in Namibia, where it is quite a rare surname, Kyrgyzstan, and Azerbaijan. Measured by absolute frequency, this name is the most popular in Germany, the United States, and South Africa. Likewise, Kassen is the forename as well as the last name.