| 51st Indian Brigade | |
|---|---|
| Active | August 1917 – August 1923 |
| Country |  British India |
| Allegiance | British Crown |
| Branch |  British Indian Army |
| Type | Infantry |
| Size | Brigade |
| Part of | 17th Indian Division |
| Engagements | First World War |
| Commanders | |
| Notable commanders | Br.-Gen. R.J.T. Hildyard |
The 51st Indian Brigade was an infantry brigade of the British Indian Army that saw active service with the Indian Army during the First World War. It took part in the Mesopotamian campaign and formed part of the occupation force for Iraq post-war.