Kwasitchewan Falls, Waterfall in Northern Region, Manitoba, Canada

Kwasitchewan Falls is a waterfall on the Grass River in northern Manitoba, Canada. It drops 14 metres (46 ft) over exposed Precambrian rock of the Trans-Hudson orogen, making it the highest waterfall in the province. The falls lie in Pisew Falls Provincial Park, 32 kilometres by trail from Pisew Falls.

The falls sit on the Grass River, which formed part of the fur traders' route into the interior of Western Canada via the Saskatchewan River basin. Indigenous peoples of the area guided those routes. The name is said to be a transliteration of a Cree term for "glistening water."

The name comes from a Cree word describing the bright appearance of water as it falls down the rock face. Visitors can witness this meaning firsthand when they see the water gleaming in the sunlight during their approach.

The falls lie a 32-kilometre return hike from Pisew Falls, the park's namesake and Manitoba's second-highest waterfall. The route crosses northern backcountry on the Grass River, so plan for a long day and remote conditions.

The falls cut through the Trans-Hudson orogen, a belt of raised crust crossing much of the greater Grass River watershed. Erosion there lays bare rock formed during that event and from Precambrian times, which is why the site draws geological interest.