Damatou Subdistrict is a subdistrict and the seat of Ziyang District in Yiyang Prefecture-level City, Hunan, China. The subdistrict was reformed through the amalgamation of Dashuiping Subdistrict and the former Damatou Subdistrict in 2005. It has an area of 5.25 km2 (2.03 sq mi) with a population of 43,483. The subdistrict was divided into 10 communities and one village.