Zhongdu (Chinese: 中都; lit. 'Middle Capital'), also called Daxing City (Chinese: 大興城), was a capital city of the Jin dynasty (1115–1234) of China, located in modern-day Beijing, in the southwestern part of Xicheng District. It served as the Jin capital from 1153 to 1214.
By the late 12th century the city had a population of nearly one million, and was the last and largest city built in that location prior to the Yuan dynasty.