| Bang Lang Reservoir | |
|---|---|
| Location | Yala Province |
| Lake type | Reservoir |
| Primary inflows | Pattani River |
| Primary outflows | Pattani River |
| Basin countries | Thailand |
| Water volume | 1,420 million m³ |
Bang Lang Reservoir (Thai: เขื่อนบางลาง, pronounced [kʰɯ̀ːən baːŋ laːŋ]) is a largest reservoir in Yala Province of Thailand. The reservoir is located on the Pattani River in Southern Thailand.
The dam is 85 metres high with a crest of 422 metres long, and the reservoir has a capacity of 1,420 million cubic metres. It is used for irrigation, flood control as well as to produce 1,275 kW of electricity.
The construction of the dam was approved on April 3, 1973, and construction started in July 1976. In June 1981 the dam was completed. It was officially inaugurated on September 27, 1981 by HRH Princess Maha Chakri Sirindhorn.