1st Polish Fighter Wing (later, No. 131 (Polish) Wing) () was a mainly Polish formation that flew Supermarine Spitfires of the Royal Air Force during the Second World War. It was part of the Polish Air Forces in France and Great Britain. On October 4, 1943, the unit was renamed to No. 131 Wing(). On 12 July 1944 the unit regained the Polish adjective in its name, becoming the No. 131 Polish Wing ().