Colville Lake is the 20th largest lake in Canada's Northwest Territories. The lake is located northwest of Great Bear Lake in the Sahtu Region. The lake has a perimeter of and a net area of and a total area of .
The only community on the lake, Colville Lake, which is the Sahtu Dene village of 126 and is located on the southeast shore, along with Colville Lake/Tommy Kochon Aerodrome and Colville Lake Water Aerodrome. Like the community it is named for Andrew Colvile.