| RAF Hornby Hall No. 9 SLG | |
| Type: | Military |
| Operator: | Royal Air Force |
| Location: | Penrith, Cumbria |
| Used: | 1941- |
| Elevation-F: | 135m (443feet) |
| Elevation-M: | 135 |
| Coordinates: | 54.6572°N -2.6642°W |
| Pushpin Map: | Cumbria |
| Pushpin Label: | RAF Hornby Hall |
| Pushpin Map Caption: | Location in Cumbria |
| R1-Number: | 00/00 |
| R1-Length-F: | 0 |
| R1-Length-M: | 0 |
RAF Hornby Hall was a Royal Air Force satellite landing ground located near Brougham, east of Penrith, Cumbria and north west of Appleby-in-Westmorland, Cumbria, England.
The airfield was opened on 17 March 1941, and was mostly used by No. 22 Maintenance Unit RAF (MU) at RAF Silloth but changed to No. 12 MU at RAF Kirkbride.[1]
The landing ground was also temporarily operated by No. 18 MU at RAF Dumfries sometime between July and September 1940.[2] Closure came in July 1945, when the site was converted into a PoW camp for German prisoners.