Wanzhou District is Chongqing's second most populated urban core area on the upper reaches of the Three Gorges of the Yangtze River in China. It is currently governed as a district of Chongqing Municipality, bordering Sichuan to the northwest and Hubei to the southeast. It was formerly known as Wanxian or Wan County. Prior to Chongqing's formation as a direct-controlled municipality, Wanzhou was part of Sichuan province. The urban core of Wanzhou is 228 km (142 mi) away from Chongqing's city proper.

Chongqing is a municipality in Southwestern China. Chongqing is one of the four direct-administered municipalities under the Central People's Government, along with Beijing, Shanghai, and Tianjin. It is the only directly administrated municipality located deep inland. The municipality covers a large geographical area roughly the size of Austria, which includes several disjunct urban areas in addition to Chongqing proper. Due to its classification, the municipality of Chongqing is the largest city proper in the world by area, though it does not have the largest urban area.