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Last name 景山 (景山 , Kageyama , Keizan ) , across the world, is quite a common family name. The last name 景山 is characteristic of Luxembourg, where it is quite a rare surname, Japan, and Hong Kong, where it is a rare surname. In absolute terms, it is commonest in China, Japan, and the United States. More prevalently, 景山 is the forename as well as the last name.