| 21st Lancers (Empress of India's) | |
|---|---|
 Badge of the regiment | |
| Active | 1858–1921/1922 |
| Country |  British India (1858–1862) United Kingdom (1862–1922) |
| Type | Cavalry |
| Colours | Dark blue uniform with French grey facings, white plume |
| Engagements | Mahdist War First World War North-West Frontier |
The 21st Lancers (Empress of India's) was a cavalry regiment of the British Army, raised in 1858 and amalgamated with the 17th Lancers in 1922 to form the 17th/21st Lancers. Perhaps its most famous engagement was the Battle of Omdurman, where Winston Churchill (then an officer of the 4th Hussars), rode with the unit.