Guangxin District () formerly, Shangrao County (), is a district in the northeast of Jiangxi province, People's Republic of China, bordering Fujian province to the south. It is under the jurisdiction of the prefecture-level city of Shangrao.
At present, Guangxin District has 3 subdistricts, 11 towns and 10 townships.
The population of the district was in 1999.
Guangxin has a humid subtropical climate (Cfa) with very hot summers and cool winters.