| Cong River | |
|---|---|
Cong River at Sông Công |
|
| Basin countries | Vietnam |
| Length | 96 |
| River system | Cầu River |
The Cong River (Vietnamese: Sông Công) is a tributary of the Red River in northern Vietnam. It flows through Thai Nguyen Province. The river is 96 km in length and has a catchment area of 951 square kilometres. It flows from Nui Coc Lake and also passes through the town of Sông Công.