HMCS Outremont was a River-class frigate that served with the Royal Canadian Navy during the Second World War and again from 1955–1965 as a Prestonian-class frigate. During the war she served primarily as a convoy escort. She was named for Outremont, Quebec.Outremont was ordered in October 1941 as part of the 1942–1943 River-class building program. She was laid down on 18 November 1942 by Morton Engineering & Dry Dock Co. at Quebec City and launched 3 July 1943.