Ganzhuang Subdistrict () is a subdistrict in Yuanjiang Hani, Yi and Dai Autonomous County, Yunnan, China. As of the 2017 census it had a population of 24,966 and an area of .
As of 2016, the subdistrict is divided into four communities and nine villages:
The subdistrict enjoys a subtropical monsoon humid climate, with an average annual temperature of , total annual rainfall of .
The subdistrict's economy is based on nearby mineral resources and agricultural resources. Tobacco, sugarcane, and fruit are commercial crops in the region. The region abounds with copper and iron.
The National Highway G213 passes across the subdistrict.