Jiangshan is a county-level city in Quzhou prefecture-level city, in the southwest of Zhejiang Province, China. It borders Jiangxi province to the west and lies about 250 kilometers southwest of Hangzhou, the provincial capital. It is the only county-level city in Quzhou.
The city's name combines the Chinese words for river and mountain: a river runs through Jiangshan, and the scenic Mt. Jianglang sits on its border. In 1999, Jiangshan's population was recorded at 563,196.