| 1st Anti-Aircraft Brigade | |
|---|---|
| Active | 1920–1955 |
| Country |  United Kingdom |
| Branch | &sq=Qlik&lang=&file=File:Flag_of_the_British_Army.svg){kind=small} British Army |
| Type | Anti-Aircraft Brigade |
| Role | Air Defence |
| Part of | Aldershot Command GHQ troops, BEF 11th AA Division Eighth Army 1 AA Group |
| Garrison/HQ | Aldershot Garrison |
| Engagements | Battle of France Dunkirk evacuation The Blitz North African Campaign |
1st Anti-Aircraft Brigade was an Air Defence formation of the British Army, during the Second World War, and served in the Battle of France and during The Blitz. It then transferred to the Middle East, where it defended the Eighth Army's lines of communication during the final phases of the North African Campaign.