HMS Magpie, pennant number U82, was a Royal Navy Modified Black Swan-class sloop launched in 1943 and broken up in 1959.

Magpie was one of eight Modified Black Swan-class sloops ordered by the Admiralty on 27 March 1941 as part of the 1940 Supplemental War Programme.

[8] Close-in anti-aircraft armament varied between the ships of the class, with Magpie completing with an outfit of four twin and four single Oerlikon 20 mm cannon.

[10] Magpie was laid down at Thornycroft's Woolston, Southampton shipyard on 30 December 1941, was launched on 24 March 1943 and completed on 30 August 1943.

Early on the morning of 6 November, U-226 was sunk by the sloop Woodcock, and later that day, after a U-boat was spotted on the surface by an aircraft from the aircraft carrier Tracker, three ships of SG2 (Starling, Wild Goose and Magpie) were ordered to attack the submarine, with U-842 being sunk by depth charges from Starling and Wild Goose.

[13][14] On 31 January 1944, SG2 was operating Southwest of Ireland in support of Convoys SL47 and MKS38 when Wild Goose detected a submarine on sonar, (U-592, which had been damaged by a US Navy P4Y-1 bomber of VPB-110 two days before and was returning to France for repairs).

A series of attacks by depth charge and Hedgehog were carried out on the contact by Wild Goose, Magpie and Starling before a large explosion brought up debris, including human remains and documents confirming the U-592 was the submarine in question.

On 29 March, the group joined Convoy JW 58, which had set out from Loch Ewe in Scotland bound for Russia two days earlier.

[14] Magpie took part in the D-Day amphibious Allied landings in Normandy on 6 June 1944, escorting an assault convoy to Gold Beach.

Due to be relieved at the Cape Station by her sister ship Sparrow, boiler problems meant the crew were changed.

In 1958 Magpie had her tour of duty at the Cape Station finally completed; she sailed back for the UK for paying off, and was broken up by Hughes Bolckow, Blyth, Northumberland on 12 July 1959.