Buttermilk Falls, Terraced ribbon waterfall in Red Hill Valley, Hamilton, Canada

Buttermilk Falls descends roughly 23 meters across several limestone steps, creating a white cascade that flows into a deep gorge beside Red Hill Creek. The water moves in multiple drops over the terraced rocks below.

Buttermilk Falls lies in the Red Hill Creek valley, one of the creek systems that Hamilton buried in large concrete storm sewers as neighbourhoods spread atop the Niagara Escarpment in the 19th and 20th centuries. The creek's watershed has carried industrial and residential runoff since that growth, and in March 2020 it was revealed that as much as 24 billion litres of untreated wastewater had leaked into Chedoke creek, a comparable urban creek, since at least 2014. Hamilton's waterfalls were catalogued by the Hamilton Conservation Authority, whose database lists 100 of them.

Buttermilk Falls lies in the Red Hill Creek valley, one of the watersheds the city lists among those with chronic water-quality problems; Hamilton does not test water at waterfall sites and advises against entering it. The falls is counted in the Hamilton Conservation Authority's database of 100 city waterfalls, and the 23-metre drop is fed by a storm sewer running beneath the surrounding neighbourhoods.

Access is through Oak Knoll Park with the Bruce Trail running around the canyon edge. The path along the rim offers the best views of the water and rock faces.

Buttermilk Falls drops about 23 metres (75 ft) into the Red Hill Creek valley, and the creek feeding it runs through buried storm sewers under neighbourhoods built on the escarpment. Hamilton's own water testing does not cover waterfall sites, and the city advises against entering the water without naming which falls are affected.