Chaisang District (), known as Jiujiang County () before September 2017, is a district of the city of Jiujiang in Jiangxi Province, China. It has non-contiguous land area, with a smaller exclave to the northeast being separated by Lianxi District and Xunyang District.
During the Three Kingdoms era, Chaisang was a stronghold in the Eastern Wu state.
Chaisang District is divided to 3 subdistricts, 5 towns and 4 townships.