Wendong Wa Ethnic Township () is an ethnic township in Lancang Lahu Autonomous County, Yunnan, China. As of the 2017 census it had a population of 14,471 and an area of .
The name "Wen" and "Dong" were place name of Wa language and Dai language, respectively. "Wen" means a stockaded village in Wa language. "Dong" means a village with little flat land.
As of 2016, the township is divided into six villages:
In 1940, it came under the jurisdiction of the 6th District. That same year, the 6th District was revoked and the Wendong Township () was set up.
After the founding of the Communist State, it was renamed "Wendeng District" (). In 1958, its name was changed to "Wendong Commune" (). In 1988, Wendong Wa Ethnic Township was officially incorporated.
Wendong Wa Ethnic Township is located in northern Lancang Lahu Autonomous County. The township shares a border with Shangyun Town to the west and south, Fudong Township to the east, and Shuangjiang County to the north.
The Mangnuo River () and Bangying River () flow through the township.
The economy of the township has a predominantly agricultural orientation, including farming and pig-breeding. Grain, corn, sugarcane, and tea are the economic plants of this region.
As of 2017, the National Bureau of Statistics of China estimates the township's population now to be 14,471.
The National Highway G214 passes across the township north to south.