The Chaudière Falls, also known as the Kana:tso or Akikodjiwan Falls, are a set of cascades and waterfall in the centre of the Ottawa-Gatineau metropolitan area in Canada where the Ottawa River narrows between a rocky escarpment on both sides of the river. The location is just west of the Chaudière Bridge and Booth-Eddy streets corridor, northwest of the Canadian War Museum at LeBreton Flats and adjacent to the historic industrial E. B. Eddy complex. The islands surrounding the Chaudière Falls, counter-clockwise, are Chaudière Island (immediately to the South & East of the falls), Albert Island (to the South), little Coffin Island was just south of Albert Island but is now submerged, Victoria Island and Amelia Island, (which was separated from Victoria Island in 1836 by Government timber slide; now fused to Victoria Island), Philemon Island (to the North) was originally called the Peninsular Village by the Wrights but became an island when the timber slide was built in 1829 (some maps identify it as Wright Island, but that is incorrect) it is now fused to south shore of City of Gatineau, and Russell Island, now submerged, was at the head of the Falls before the Ring dam was built. The falls are about 60 metres (200 ft) wide and drop 15 metres (49 ft). The area around the falls was once heavily industrialized, especially in the 19th century, driving growth of the surrounding cities.

The damming of the river and the presence of industry have greatly altered the lands surrounding the waterfall, and the fall's appearance. This is especially true in the summer when the Ottawa River is low, and the falls all but disappear because the water is diverted to power stations owned and operated by Portage Power, an affiliate of Hydro Ottawa. Inaccessible for generations, the Falls and hydro facilities are now publicly accessible since the opening of Chaudiere Falls park in 2017, designed by architect Douglas Cardinal. Other properties adjacent to the Falls are slated for development by public and private interests, including an Indigenous welcome centre on Victoria Island, led by the National Capital Commission (NCC) with regional First Nation representatives, and Zibi, a private mixed-use redevelopment project.