The Leicestershire Yeomanry (Prince Albert's Own) was a yeomanry regiment of the British Army, first raised in 1794 and again in 1803, which provided cavalry and mounted infantry in the Second Boer War and the First World War and provided two field artillery regiments of the Royal Artillery in the Second World War, before being amalgamated with the Derbyshire Yeomanry to form the Leicestershire and Derbyshire (Prince Albert's Own) Yeomanry in 1957. The regiment's lineage is currently perpetuated by E (Leicestershire and Derbyshire Yeomanry) Squadron of the Royal Yeomanry.

The 3rd Cavalry Brigade was a cavalry brigade of the British Army. It served in the Napoleonic Wars, in the Boer War, and in the First World War on the Western Front where it was initially assigned to The Cavalry Division before spending most of the war with the 2nd Cavalry Division.