| 21st Indian Infantry Brigade | |
|---|---|
| Active | 1940–1945 |
| Country |  British India |
| Allegiance |  British Empire |
| Branch |  British Indian Army |
| Type | Infantry |
| Size | Brigade |
| Engagements | Anglo-Iraqi War North African Campaign Italian Campaign |
| Commanders | |
| Notable commanders | Sir Philip Christison |
The 21st Indian Infantry Brigade was an infantry brigade formation of the Indian Army during World War II.