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

[2][3][4] The "corvette" designation was created by the French as a class of small warships; the Royal Navy borrowed the term for a period but discontinued its use in 1877.

[5] 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.

The 1940–41 program had water-tube boilers, which were less responsive but had more reliability in providing a consistent supply of steam.

However, later that year she was reassigned to the east coast to replace corvettes departing for Operation Torch, the invasion of North Africa.

She arrived at Halifax 13 October 1942 and was assigned to the Western Local Escort Force (WLEF).

[10] With the WLEF, New Westminster escorted convoys on what became known as the "Triangle Run", the route between New York City, Boston and St. John's.