Colmillos del Río Blanco is a pair of waterfalls located at the end of a trail within Reserva Nacional Llanquihue, in Chile's Los Lagos Region.

The falls sit along the Río Blanco and serve as the natural endpoint for trekkers who are not continuing onward to summit Volcán Calbuco. The route to the falls is considered a rewarding trek, particularly in cooler months when snow adds to the scenery.

Visitors should exercise caution, however, as icy sections along the trail can make the approach hazardous.