809 Naval Air Squadron is a squadron of the Fleet Air Arm of the United Kingdom. It was formed in 1941 and flew in Russia, the Mediterranean and the Far East during World War II. After active service during the Suez Crisis, 809 was disbanded in 1959. Reformed in 1963 to fly Buccaneers, the squadron was disbanded briefly in 1965-66, and then again in 1978. A brief period during the Falklands war saw 809 reformed to bring Sea Harrier aircraft south to the UK task group and to fly from Illustrious. In September 2013 it was announced that the first Royal Navy squadron equipped with the F-35 Lightning would be named 809 Naval Air Squadron with the nickname "Immortals". It will stand up in April 2023 as the UK's second operational F-35B squadron after 617 Squadron RAF.