Wuyuan () is a county in northeastern Jiangxi province, People's Republic of China, bordering the provinces of Zhejiang to the east and Anhui to the north. It is under the jurisdiction of the prefecture-level city of Shangrao.
Wuyuan, on the boundary of three provinces in Jiangxi's northeastern corner, has a landscape dotted with strange caves, deep secluded rocks and numerous historic sites. Wuyuan County is home to some of the best-preserved ancient architectures in China. Wuyuan's structures were built in 740 during the Tang Dynasty. Its remoteness and inconvenient transportation protect its villages from too many visitors.
It was a county under Huizhou, Anhui province until 1989.
At present, Wuyuan County has 1 subdistrict, 10 towns and 6 townships.
The population of the district was in 2010.
The dialect of Wuyuan county is of the Hui dialects, and its culture closely resembles that of Huizhou in southern Anhui.
The GDP of Wuyuan in 2011 is 5.622 billion yuan (RMB).