HMCS Quatsino (pennant J152) was a Bangor-class minesweeper constructed for the Royal Canadian Navy during the Second World War.

The engines produced a total of 2,400 indicated horsepower (1,800 kW) and gave a maximum speed of 16.5 knots (30.6 km/h; 19.0 mph).

[1] Quatsino was armed with a single quick-firing (QF) 4-inch (102 mm)/40 caliber Mk IV gun mounted forward.

Assigned to the patrol units Esquimalt Force (operating out of Esquimalt, British Columbia) or Prince Rupert Force (operating out of Prince Rupert), the main duty of Bangor-class minesweepers after commissioning on the West Coast was to perform the Western Patrol.

[4][5] On 8 July 1942, a Royal Canadian Air Force Bristol Bolingbroke maritime patrol aircraft of No.

Quatsino rendezvoused with the United States Coast Guard cutter USCGC McLane and the U.S. Coast Guard-manned United States Navy patrol vessel USS YP-251 on 9 July 1942, and the three ships began a search for the submarine in Dixon Entrance southeast of Annette Island in Southeast Alaska, but Quatsino did not take part in an anti-submarine action later that day in which McLane and YP-251 received credit for sinking a submarine in the Pacific Ocean off Southeast Alaska.