Xiaobailou Subdistrict () is a subdistrict of Heping District, Tianjin. it borders Guangfudao Subdistrict in the north, Dawangzhuang Subdistrict in the east, Dayingmen and Wudadao Subdistrict in the south, and Quanyechang Subdistrict in the west. It was once part of the American concession of Tianjin. As of 2010, its population was 30,982.
The name Xiaobailou () originated back when this region was a foreign concession. Since the area did not have an official name yet, it was named after a two-story pub that was a local landmark.
Xiaobailou Subdistrict is located on the west bank of Hai River.
As of 2021, Xiaobailou Subdistrict was made up of the following 9 communities: