| Unit Name: | 11th Indian Cavalry Brigade |
| Dates: | 14 November 1917 – March 1919 |
| Allegiance: | British Crown |
| Type: | Cavalry |
| Size: | Brigade |
| Battles: | First World War |
| Notable Commanders: | Br.-Gen. R.A. Cassels |
The 11th Indian Cavalry Brigade was a cavalry brigade of the British Indian Army that saw active service in the Indian Army during the First World War. It took part in the Mesopotamian campaign and was broken up soon after the end of the war.
The 11th Indian Cavalry Brigade was formed in Mesopotamia in November 1917 with two cavalry regiments and a horse artillery battery from India. The third regiment joined from Corps Troops, and its machine gun squadron and other support units were assembled in Mesopotamia. It did not join the Cavalry Division (Mesopotamia) but served as an independent formation.
The brigade remained in Mesopotamia for the rest of the First World War, taking part in the action of Khan Baghdadi (26–27 Match 1918), the action at Fat-ha Gorge on the Little Zab (23–26 October 1918) and the Battle of Sharqat (28–30 October 1918) under the command of I Corps.
After the Armistice of Mudros, the brigade was not selected to form part of the occupation forces for Mesopotamia. By the end of March 1919 the brigade was broken up.
The brigade commanded the following units in the First World War:
The brigade was commanded from 14 November 1917 by Brigadier-General R.A. Cassels.