Chengnan Subdistrict (Chinese: 城南街道; pinyin: Chéngnán Jiēdào; Tibetan: གྲོང་ལྷོ་དོན་གཅོད་, Wylie: grong lho don gcod ) is a subdistrict of Samzhubzê District, Shigatse, in the Tibet Autonomous Region of China. At the time of the 2010 census, the subdistrict had a population of 50,857 and an area of 90 square kilometres (35 sq mi). As of 2019, it has five residential communities (社区) under its administration.