| Hueihahue River | |
| Source1 Location: | Continental divide |
| Mouth Location: | Maihue Lake |
| Subdivision Type1: | Country |
| Subdivision Name1: | Chile |
| Mouth Elevation: | ~90m (300feet) |
Hueinahue River is a river in Futrono and Lago Ranco communes, southern Chile. It drains waters from the cordillera at the Argentine border west to Maihue Lake, which in turn flows by Calcurrupe River into Ranco Lake. The river flows in an east-west direction along the Futrono Fault.