Huichang County () is a county, under the jurisdiction of Ganzhou, in the south of Jiangxi province, People's Republic of China.
The population of Huichang is 445,137 (2010), including nations of Han (partly Hakka) and She.
Huichang has jurisdiction over 6 towns and 13 townships. The seat of the county locates at the Wenwuba Town.
Huichang is located in the southeast of Jiangxi province. The Xiang River and the Mian River merge here and form the Gong River.
Huichang has an area of 2722.18 km<sup>2</sup>.