3rd Mounted Division

2/2nd Mounted Division
3rd Mounted Division
1st Mounted Division
The Cyclist Division
Active6 March 1915 – June 1919
Country United Kingdom
Branch British Army
TypeYeomanry
Bicycle infantry
SizeDivision
ServiceWorld War I
Commanders
Notable
commanders
John Burn-Murdoch

The 3rd Mounted Division was a Yeomanry Division of the British Army active during World War I. It was formed on 6 March 1915 as the 2/2nd Mounted Division, a replacement/depot formation for the 2nd Mounted Division which was being sent abroad on active service. In March 1916, it was renumbered as the 3rd Mounted Division and in July 1916 as the 1st Mounted Division. In September 1917, the division was reorganized as a cyclist formation and redesignated as The Cyclist Division. It remained in the United Kingdom throughout the war and was disbanded in June 1919.