Wanxin Subdistrict (simplified Chinese: 万新街道; traditional Chinese: 萬新街道; pinyin: Wànxīn Jiēdào) is a subdistrict located in the western part of Dongli District, Tianjin, China.

It is situated to the south of Lushan Avenue and Huaming Subdistricts, west of Xinli Subdistrict and Tianjin Aviation Logistics District, north of Shuanggang Town and Liulin Subdistrict, as well as east of Dongxin and Shanghang Road Subdistricts.

In addition, Wanxin has an exclave south of Erhaoqiao Subdistrict.

'Ten-thousand New') is inherited from Wanxinzhuang Village that predated the subdistrict.

[2] At the end of 2022, Wanxin Subdistrict is made up of 24 subdivisions, where 18 of them are residential communities and 6 of them are villages.