| Maanikka Gangai | |
| Name Etymology: | ganga is a Singhala word for river; menik means gem |
| Pushpin Map: | Sri Lanka |
| Length: | 114km (71miles) |
| Discharge1 Max: | 220 106 Sq.m |
| Source1 Location: | Namunukula |
| Mouth Location: | Yala (Ruhuna) |
| Mouth Elevation: | Sea level |
The Menik Ganga is the thirteenth-longest river of Sri Lanka. The river is approximately 1140NaN0 long and flows across two provinces and two districts.
Its catchment area receives approximately 2,124 million cubic metres of rain per year, and approximately 10 percent of the water reaches the sea. It has a catchment area of 1,272 square kilometres.[1]