The Royal Lancers (Queen Elizabeths' Own) is a cavalry regiment of the British Army. The regiment was formed by an amalgamation of 9th/12th Royal Lancers (Prince of Wales's) and the Queen's Royal Lancers on 2 May 2015. It serves in the 1st Deep Recce Strike Brigade Combat Team. The Royal Lancers are part of the 3rd (UK) Division.

There are 13 cavalry Regiments of the British Army each with its own unique cap badge, regimental traditions, and history. Of the currently nine regular cavalry regiments, two serve as armoured regiments, three as armoured cavalry regiments, three as light cavalry, and one as a mounted ceremonial regiment. There are also four yeomanry regiments of the Army Reserve, of these, three serve as light cavalry and one as an armoured regiment. Each yeomanry light cavalry unit has been paired with a regular unit of the same role, the armoured yeomanry unit is paired with the two regular armoured units. All except the Household Cavalry are part of the British Army's Royal Armoured Corps.