| Pillanleufú River | |
| Source1 Location: | Mocho-Choshuenco |
| Mouth Location: | Maihue Lake |
| Subdivision Type1: | Country |
| Subdivision Name1: | Chile |
Pillanleufú River (Mapudungun for river of the pillán) is a river in Futrono, southern Chile.[1] It drains waters from the southern and eastern slopes of Mocho-Choshuenco volcano to Maihue Lake, which in turn flows by Calcurrupe River into Ranco Lake. The river flows in a north-south direction along the Liquiñe-Ofqui Fault.