For the submarine, see HMCS Corner Brook (SSK 878).

Corner Brook (2011 population: 19,886 CA 26,623) is a city located on the west coast of the island of Newfoundland in Newfoundland and Labrador, Canada.

Located on the Bay of Islands at the mouth of the Humber River, the city is the largest population centre in the province after St. John's. As such, Corner Brook functions as a service centre for western and northern Newfoundland.