Donghe Township () is a township in Lancang Lahu Autonomous County, Yunnan, China. As of the 2017 census it had a population of 11,115 and an area of .
The name of "Donghe" named is after the "Dong River" (), which flows through the region.
As of 2016, the township is divided into seven villages:
In the Republic of China (1912-1949), it belonged to Daling Township ().
After establishment of the Communist State, it was merged into Dashan District (). It was demerged from Donghe District () in 1984. It was incorporated officially as a township in 1988.
It lies at the northern of Lancang Lahu Autonomous County, bordering Nanling Township to the southwest, Fubang Township to the west, ianliu Yi Ethnic Township to the south and east, Shangyun to the northwest, and Dashan Township to the northeast.
The Dong River () and Laba River () flow through the township.
The principal industries in the area are agriculture. Significant crops include grain, corn, wheat, tea, and fruit.
As of 2017, the National Bureau of Statistics of China estimates the township's population now to be 11,115.