Xinzhuang Town () is a town located in the northwestern portion of Jinnan District, Tianjin, China. It borders Xinli and Jinqiao Subdistricts in the north, Xianshuigu Town in the east, Haitang Subdistrict in the south, Shuanggang Town in the west, and has an exclave north of Balitai Town. The town has 38,666 people residing within it as of 2010.
The name "Xinzhuang" () refers to the Zhong Xinzhuang Village that hosts the town's government since 1969.
Xinzhuang is located to the south of Hai River. Tianjin Avenue (S125) and Jingu Road (S105) both pass through the town.
In 2022, Xinzhuang Town is divided into 31 subdivisions, of which 11 are residential communities and 20 are villages. They are listed as follows: