No. 41 was a fighter squadron that served in the Royal Air Force during World War II. Its motto was "Seek and Destroy" and it was originally formed in 1916. The squadron was initially armed with the Airco D.H.2 and then D.H.5 fighters. As of the Second World War, No. 41 was the third British squadron to have received the Supermarine Spitfire. Subsequently, the squadron kept these aircraft and their sub-variants until the end of the war.