Jiangnanxidao (Chinese: 江南西道, 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.

This article relies largely or entirely on a single source. (November 2022)

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:^[1]

• 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