Suichuan County (simplified Chinese: 遂川县; traditional Chinese: 遂川縣; pinyin: Suìchuān Xiàn) is a county of Jiangxi province, People's Republic of China. It is under the jurisdiction of the prefecture-level city of Ji'an.
The population of the district was 508,688 in 1999.
Suichan County is one of the largest producers of kumquats in China.