The Dachaoshan Dam (Chinese: 大朝山大坝) is a gravity dam on the Lancang (Mekong) River in Yunnan Province, China.

The sole purpose of the dam is hydroelectric power production as it supplies water to a power station containing six 225 MW generators for a total installed capacity of 1,350 MW.

On August 4, 1997, the project was approved for construction commencement and on November 10, 1997, the river was diverted.

To release water downstream, the dam has five 14 m (46 ft) x 17 m (56 ft) crest openings along with three mid-level openings and one bottom flushing outlet.

[1] The dam's power station is underground and supplied with water via six 179.5 m (589 ft) long penstocks.