Churchill Falls, Waterfall on Churchill River in Labrador, Canada

Churchill Falls is a waterfall on the Churchill River in southwestern Labrador, Canada, dropping about 75 m (245 ft) into Bowdoin Canyon. Above the falls the river runs through rapids that descend 66 m, and below them further rapids fall 158 m. Since the water is diverted to the underground generating station, the riverbed in the canyon is usually dry and water flows over the falls only during high water.

The trader John McLean of the Hudson's Bay Company reached the site in 1839 and first called it Grand Falls. In 1965 the waterfall received its current name in honor of British Prime Minister Winston Churchill.

The Innu call the falls Patshishetshuanau, meaning "place where the current makes clouds". They held a strong taboo against visiting the falls, believing that to look on them meant death, and kept this up into the early 20th century. The name records the spray the falling water once threw up.

The Churchill Falls Generating Station has diverted most of the water flow through turbines since the 1970s, so the waterfall now carries roughly one-tenth of its former volume. Visitors should know the site is in a remote area with limited access.

The Churchill River drops a total of roughly 335 m (1,100 ft) over a stretch of about 26 km (16 mi), with this waterfall marking the largest single descent along that section. Today visitors see mainly the power station rather than the original volume of water that once roared through the canyon.