HMCS Harry DeWolf (AOPV 430) is the lead ship of its class of offshore patrol vessels for the Royal Canadian Navy (RCN).

The ship has an operational range of at least 6,800 nautical miles (12,600 km; 7,800 mi) at 14 knots (26 km/h; 16 mph) in open water[7] and an endurance of 120 days.

[9][2][10] Harry DeWolf is able to deploy with multiple payloads, including shipping containers, underwater survey equipment or landing craft.

[11] The order for the Arctic Offshore Patrol Ships was placed on 19 October 2011 with Irving Shipyards of Halifax, Nova Scotia, as part of the National Shipbuilding Procurement Strategy.

[9] On 18 September 2014, it was announced that the first ship of the class was to be named Harry DeWolf in honour of Rear Admiral Harry DeWolf, a decorated naval officer who served during World War II in European waters and as the Royal Canadian Navy Chief of the Naval Staff during the early Cold War.

[25] During this exercise, a new underwater listening device called the Towed Reelable Active-Passive Sonar (TRAPS) was trialled, testing advanced acoustic sensing capabilities for anti-submarine warfare operations.

[27] Harry DeWolf left CFB Esquimalt on 22 October 2021, and sailed to the Caribbean Sea and Atlantic Ocean via the Panama Canal.

[29][28] Harry DeWolf returned to CFB Halifax on 16 December 2021, becoming the first Canadian naval vessel to circumnavigate North America since HMCS Labrador made a similar voyage in 1954.

[29] In August 2022, Harry DeWolf was among the Canadian warships that were to be deployed to the Arctic as part of the multinational military exercise Operation Nanook.