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Surname Densen (登森 , Densen , หนาแน่น) , in the world, is a rare cognomen. The family name Densen is habitual in Netherlands, where it is a rare surname, Denmark, where it is a very rare surname, and Philippines. In absolute terms, it is the most numerous in China, the United States, and Philippines. Likewise, Densen is the forename as well as the last name.