The Gan River (simplified Chinese: 赣江; traditional Chinese: 贛江; pinyin: Gàn Jiāng, Gan: Kōm-kong) travels 885 km (550 mi) north through the western part of Jiangxi before flowing into Lake Poyang and thence into the Yangtze River. The Xiang-Gan uplands separate it from the Xiang River of neighbouring eastern Hunan.
It is the major geographical backbone of Jiangxi, and gives its name to the Gan language.
The river feeds into Lake Poyang, which in turns connects with the Yangtze.
Coordinates: 28°31′55″N 115°48′54″E / 28.532°N 115.815°E