Caidian District (simplified Chinese: 蔡甸区; traditional Chinese: 蔡甸區; pinyin: Càidiàn qū) is one of 13 districts of Wuhan, the capital of Hubei province, People's Republic of China, forming part of the city's southwestern suburbs and situated on the northwestern (left) bank of the Yangtze River. On the left bank it borders the districts of Dongxihu to the north, Hanyang to the northeast, and Hannan to the south; on the opposite bank, Jiangxia and Hongshan.