| Unit Name: | No. 291 Squadron RAF |
| Dates: | 1 December 1943 – 26 June 1945 |
| Branch: | Royal Air Force |
| Garrison Label: | Base |
| Colors Label: | post 1950 aircraft insignia |
| Identification Symbol: | MM (Allocated April – September 1939) |
| Identification Symbol Label: | Squadron Code |
No. 291 Squadron RAF was a Royal Air Force squadron formed as an anti-aircraft cooperation unit in World War II.
The squadron formed at RAF Hutton Cranswick in Yorkshire on 20 November 1941. It was equipped initially with Miles Martinets and then Hawker Hurricanes and Lockheed Hudsons. Targets were towed by aircraft to provide practice for the anti-aircraft defences in Eastern England. The squadron was also equipped with the Vultee Vengeance before it was disbanded on 26 June 1945.
| Dec 1943 | Mar 1944 | III | ||
| Dec 1943 | Mar 1944 | |||
| Mar 1944 | Nov 1944 | IIC | ||
| Apr 1944 | Jun 1945 | Hawker Hurricane | IV | |
| Nov 1944 | Jun 1945 | IV |