Chilongnan Subdistrict (simplified Chinese: 赤龙南街道; traditional Chinese: 赤龍南街道; pinyin: Chìlóngnán Jiēdào) is a subdistrict situated on Northeastern Xiqing District, Tianjin, China.

It shares border with Chilongbei Subdistrict to the northwest, and is surrounded by Dasi Town in the other directions.

The subdistrict was formed in 2016 and its name literally means "Red Dragon South".

[1] In 2022, Chilongnan Subdistrict consists of the following 4 residential communities:[2]