Wangdingdi Subdistrict () is one of the 12 subdistricts within Nankai District, Tianjin, China. It is located in the south of Jialing Avenue Subdistrict, west of Xuefu and Shuishanggongyuan Subdistricts, north of Tiyuzhongxin and Huayuan and Subdistricts, and east of New Technology Industrial Park and Xiyingmen Subdistrict. According to the 2010 Chinese Census, Wangdingdi Subdistrict was home to 122,599 inhabitants.
The name Wangdingdi () comes from a village by the same name that used to exist within the region.
Wangdingdi subdistrict lies on the eastern bank of Chentaizi Paishui River.
Below is a table listing all 26 residential communities of Wangdingdi Subdistrict: