| South Eastern Mounted Brigade | |
|---|---|
| Active | 1908–February 1916 |
| Country |  United Kingdom |
| Branch |  British Army |
| Type | Yeomanry |
| Size | Brigade |
| HQ (peacetime) | Russell Square, London |
| Engagements | World War I |
The South Eastern Mounted Brigade was a formation of the Territorial Force of the British Army, organised in 1908. After service in the Gallipoli Campaign, it was absorbed into the 3rd Dismounted Brigade in Egypt in February 1916.