Daxi may refer to:

• Daxi (大西) dynasty, a short-lived dynasty (1643–1646) established by Zhang Xianzhong
• Daxi Creek (大溪), tributary of the Xitiao River in Anji County, Zhejiang
• Daxi culture (5000 BC–3000 BC), Neolithic culture centered in the Three Gorges region, around the middle Yangtze River
• Daxi, Youyang County, town in Youyang Tujia and Miao Autonomous County, Chongqing
• Daxi, Pinghe County, town in Pinghe County, Fujian
• Daxi, Jiexi County, town in Jiexi County, Guangdong
• Daxi, Jianghua Yao County, a town in Jianghua Yao Autonomous County, Hunan
• Daxi, Wenling, town in Wenling, Zhejiang
• Datong–Xi'an Passenger Railway

• Daxi District, district in Taoyuan, Taiwan
• Daxi Station, railway station in Yilan County, Taiwan, Republic of China