Zhanggong District () is the administrative center of the prefecture-level city of Ganzhou in the south of Jiangxi Province, China. The oldest part of Ganzhou's ancient sewage system named Fushou Gou (), which was built during the eleventh century AD and still in use today, is located in Zhanggong District.
As of 2021, the district covers an area of 479 square kilometers, and has a population of 768,996.
In the present, Zhanggong District has 7 subdistricts and 8 townships.
Ganzhou railway station is located here.