HMS L26

HMS L26 was a British L class submarine built by Vickers, Barrow-in-Furness. She was transferred to HM Dockyard, Portsmouth for completion. She was laid down on 31 January 1917 and commissioned on an unknown date.

HMS L26 was damaged in the Mediterranean in March 1929, but was repaired in Gibraltar. On 8 October 1933, there was an explosion on board in Campbeltown Harbour, Scotland, which killed two and injured 10 crew. She was used as a training submarine from 1940 to 1942.

She was transferred to Canada in 1944 as an anti-submarine training ship. She was based at Digby, Nova Scotia at HMCS Cornwallis and at Bermuda, attached to HMCS Somers Isles. She was sunk as a target for sonar testing off St. Margarets Bay, Nova Scotia on 1 November 1946. The wreck was rediscovered during the search for wreckage from the Swissair Flight 111 crash.