HMCS Summerside was a Flower-class corvette that served the Royal Canadian Navy during the Second World War.

[4][5][6] The "corvette" designation was created by the French for classes of small warships; the Royal Navy borrowed the term for a period but discontinued its use in 1877.

[7] During the hurried preparations for war in the late 1930s, Winston Churchill reactivated the corvette class, needing a name for smaller ships used in an escort capacity, in this case based on a whaling ship design.

She was laid down by Morton Engineering & Dry Dock Co. at Quebec on 4 October 1940 and launched on 7 May 1941.

The first took place in the United Kingdom where she had additional AA weaponry in the form of two 20-mm Oerlikons added to her as part of the preparations for Operation Torch.

Her final refit began at Liverpool, Nova Scotia in October 1944 and was completed at Halifax 18 January 1945.

[12] In March 1942, Summerside was assigned to the Western Local Escort Force (WLEF).

[12] On 29 October 1942 Summerside along with Rosthern rescued survivors from the crew of the American tanker Pan New York which was torpedoed and damaged by U-624 in the North Atlantic 550 miles (890 km) west of Malin Head at 54-58N, 23-56W.