高山

高山, meaning "tall mountain(s)", may refer to:

Mandarin Chinese reading Gāoshān:
 * Gaoshanzu, the name used in the People's Republic of China to refer to Taiwan aborigines
 * Courtesy name of Taiwan-based 20th-century Taoist religious leader Wang Hao-te
 * Guqin piece by Spring and Autumn period or Warring States period musician Bo Ya

Cantonese Chinese reading Gōusāan
 * Ko Shan Terrace, residential estate in Taikoo Shing, Hong Kong
 * Ko Shan Road Park, an urban park

Korean reading Gosan
 * Ko San, South Korean astronaut

Japanese kun-yomi Takayama
 * Takayama, Gifu, city in Gifu Prefecture, Japan
 * Takayama Main Line, train line running between Gifu and Toyama, Japan
 * Takayama, Gunma, village in Agatsuma District, Gunma Prefecture, Japan
 * Takayama, Nagano, village in Kamitakai District, Nagano Prefecture, Japan

Vietnamese reading Cao Sơn
 * Commune Cao Son, district Anh Son, province Nghe An
 * Commune Cao Son, district Bach Thong, province Bac Kan
 * Commune Cao Son, district Da Bac, province Hoa Binh
 * Commune Cao Son, district Luong Son, Hoa Binh province
 * Commune Cao Son, district Muong Khuong, province Lao Cai.
 * The names of many mountain gods in Vietnam, god Cao Sơn.