Durwards Falls is a waterfall located on the Cascade River (Māori: Tahutahi ) on New Zealand's West Coast, within or near Mount Aspiring National Park.

Topographic maps indicate a drop of approximately 50 meters, though one source suggests it may be as tall as 76 meters. The falls guard the upper reaches of the Cascade River, separating the more accessible lower sections from steep, technical terrain above.

For whitewater paddlers, Durwards Falls marks a significant landmark on the river, with the gorge below rated Grade IV+.

The upper Cascade above the falls has been run by at least one experienced kayaker, though it remains a rarely attempted and demanding objective.