| RAF Caistor | |
| Ensign: | Ensign of the Royal Air Force.svg |
| Ensign Size: | 90px |
| Location: | Caistor, Lincolnshire |
| Country: | England |
| Type: | Relief Landing Ground |
| Coordinates: | 53.5028°N -0.3639°W |
| Pushpin Map: | Lincolnshire |
| Pushpin Map Caption: | Shown within Lincolnshire |
| Pushpin Label: | RAF Caistor |
| Operator: | Royal Air Force |
| Controlledby: | RAF Fighter Command |
| Used: | 1941- |
| Battles: | European theatre of World War II |
| Elevation: | 30m (100feet) |
| R1-Number: | 00/00 |
| R1-Surface: | Grass |
| R2-Number: | 00/00 |
| R2-Surface: | Grass |
| R3-Number: | 00/00 |
| R3-Surface: | Grass |
| R4-Number: | 00/00 |
| R4-Surface: | Grass |
RAF Caistor is a former Royal Air Force Relief Landing Ground located south east of Brigg, Lincolnshire and north west of Binbrook, Lincolnshire, England, the site is now used for farming.
The site has now returned to agricultural use, and little remains of the military facilities.