461 Squadron was a Royal Australian Air Force maritime patrol squadron during World War II which operated under Royal Air Force control flying in Europe and over the Atlantic.

Throughout the war, the squadron was credited with destroying a total of six German U-boats, and operated mainly in the Bay of Biscay and Atlantic.

After a period of training, the squadron began flying operational anti-submarine patrols over the Atlantic in July.

[6] The squadron flew a number of transport flights to Gibraltar in October in support of Operation Torch.

461 Squadron mainly conducted daylight anti-submarine patrols over the Bay of Biscay, having moved to a new base at Pembroke Dock in April 1943.

The Sunderland aircraft were fitted with a heavy defensive armament, however, and were often successful in beating off fighter attacks.

A total of 86 squadron members of all nationalities were killed on operations, including 64 Australians.