"Sovereign's Body Guard" is the name given to three ceremonial units in the United Kingdom who are tasked with guarding the Sovereign. These units are:

Her Majesty's Body Guard of the Honourable Corps of Gentlemen at Arms - formed in 1509. The Queen's Body Guard of the Yeomen of the Guard - formed in 1485, and the Royal Company of Archers, the Queen's Body Guard for Scotland - formed in 1676 and entered royal service in 1822.

Although the Yeomen of the Guard is older, the Gentlemen at Arms are more senior, due to their being classed as 'gentlemen' rather than 'yeomen', and because they are classed as the 'nearest guard', i.e. the personal guard to the Sovereign. The Royal Company of Archers performs this role when the Sovereign is in Scotland.

The Household Cavalry Mounted Regiment (HCMR) is a cavalry regiment of the British Army tasked primarily with ceremonial duties. Part of the Household Division, it is classed as a regiment of guards and carries out mounted (and some dismounted) ceremonial duties on State and Royal occasions. The HCMR mounts a daily guard (called Queen's Life Guard) at Horse Guards, which is the historical and ceremonial entrance to Buckingham Palace. This ceremony can be viewed daily by members of the public. The HCMR is responsible for the provision of the Sovereign's Escort, most commonly seen at the monarch's annual Birthday Parade (Trooping the Colour) in June each year. The Regiment is based close by Buckingham Palace.

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