Gaocheng is a town in Wanzai County, in the northwestern part of Jiangxi province, China. It lies about 10 kilometres (6.2 mi) due west of the county seat.
As of 2020, the town administers one residential neighbourhood, Gaocheng Street Residential Neighborhood, along with 13 villages: Gaocheng, Liansheng, Qiaoxi, Shaotian, Qifeng, Nanmiao, Taoyuan, Meiyuan, Lishan, Daping, Tuanjie, Guyuan and Fusheng.
Gaocheng should not be confused with other places bearing the same name elsewhere in China; this entry refers specifically to the town in Wanzai County, Jiangxi.