Jiangnanxidao (, Circuit of Western Jiangnan; Gan: Kongnomsitau) was a southern circuit of Tang Empire. It corresponds to part of present-day Jiangxi, Hubei, Hunan, Anhui. Jiangnanxidao is the origin where the name "Jiangxi" derives from, and its administrative territories also roughly represent nowadays Gan-speaking areas in China.
Jiangnanxidao was split from Jiangnandao in 733 with its capital located in Hongzhou (洪州, Gan: Fungjiu), modern-day Nanchang. Jiangnanxidao was divided into nineteen prefectures, namely: Xuanzhou, 宣州 Shezhou, 歙州 Chizhou, 池州 Hongzhou, 洪州 Jiangzhou, 江州 Ezhou, 鄂州 Yuezhou, 岳州 Raozhou, 饒州 Qianzhou, 虔州 Jizhou, 吉州 Yuanzhou, 袁州 Xinzhou, 信州 Fuzhou, 撫州 Tanzhou, 潭州 Hengzhou, 衡州 Yongzhou, 永州 Daozhou, 道州 Binzhou, 郴州 Shaozhou, 邵州
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