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Cognomen 栗山 (Shigehisa , 栗山 , Курияма ) , in the world, is a rare last name. The cognomen 栗山 is characteristic of Japan, where it is a very rare surname, Russia, where it is an extremely rare surname, and Germany. Not in comparison with a country's population, it is commonest in Japan, China, and Russia. More frequently, 栗山 is the forename as well as the last name.