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Family name 金山 (金山 , Kanayama , Канаяма ) , all around the world, is a common surname. The surname 金山 is habitual in Eastern Asia, particularly China, where it is quite a rare surname, Hong Kong, where it is a rare surname, and Japan. Measured by absolute frequency, it is commonest in China, Brazil, and Japan. More prevalently, 金山 is the forename as well as the last name.