140th (4th London) Brigade
| 4th London Brigade 140th (4th London) Brigade 140th (4th London) Infantry Brigade 140th (London) Infantry Brigade  | |
|---|---|
Badge of 140th (4th London) Bridge  | |
| Active | 1908–1919 1920–1936 1939–1944 1944–1945  | 
| Country | United Kingdom | 
| Branch | British Army | 
| Type | Infantry | 
| Size | Brigade | 
| Part of | 47th (1/2nd London) Division | 
| Nickname(s) | "The Grey Brigade" | 
| Engagements | First World War | 
| Commanders | |
| Notable commanders  | Viscount Hampden Arnold Cazenove  | 
The 140th (4th London) Brigade was an infantry brigade formation of the British Army's Territorial Army (TA) that had its origins in a South London Brigade (known as the 'Grey Brigade') of the former Volunteer Force. It served on the Western Front in the First World War and was recreated during the Second World War where it served only in the United Kingdom as a training formation.