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Cognomen Sugiyama (スギヤマ , Sugiyama , 杉山 , among others...) , across the world, is quite a rare last name. The family name Sugiyama is habitual in Japan, where it is quite a rare surname, Albania, where it is a rare surname, and Taiwan. Measured by absolute frequency, it is the most numerous in Japan, the United States, and Brazil. More prevalently, Sugiyama is the forename as well as the last name.