No. 309 Polish Fighter-Reconnaissance Squadron
| No. 309 "Ziemi Czerwieńskiej" (Polish) Squadron | |
|---|---|
309 Squadron logo | |
| Active | 8 November 1940 – 6 January 1947 |
| Country | United Kingdom |
| Allegiance | Polish government in exile |
| Branch | Royal Air Force |
| Role | Reconnaissance squadron; later fighter squadron |
| Part of | RAF Fighter Command |
| Nickname(s) | Ziema Czerwienska |
| Commanders | |
| Notable commanders | Henryk Pietrzak |
| Insignia | |
| Squadron Codes | AR; from 1944 WC |
No. 309 "Land of Czerwień" Polish Fighter-Reconnaissance Squadron (Polish: 309 Dywizjon "Ziemi Czerwieńskiej") was a Polish squadron formed in Great Britain as part of an agreement between the Polish Government in Exile and the United Kingdom in 1940. It was one of 15 squadrons of the Polish Air Force in exile that served alongside the Royal Air Force (RAF) in World War II. It was at first a reconnaissance squadron, and later converted into a fighter squadron. It was named after the region around the city of Czerwień; which was then in southeastern Poland, and is now in western Ukraine.