1st Life Guards

1st Regiment of Life Guards
Cap badge of the 1st Life Guards
Active	1788–1922
Country	Kingdom of Great Britain (1788–1800)  United Kingdom (1801–1922)
Branch	Army
Type	Household Cavalry
Role	Cavalry

The 1st Regiment of Life Guards was a cavalry regiment in the British Army, part of the Household Cavalry. It was formed in 1788 by the union of the 1st Troop of Horse Guards and 1st Troop of Horse Grenadier Guards. In 1922, it was amalgamated with the 2nd Life Guards to form the Life Guards.

The regiment was formed in 1788 by the union of the 1st Troop of Horse Guards and 1st Troop of Horse Grenadier Guards. It fought in the Peninsular War and at the Waterloo. In 1877, it was renamed 1st Life Guards and contributed to the Household Cavalry Composite Regiment in the Anglo-Egyptian War, in the Second Boer War and in the First World War from August to November 1914. From 1916 to 1918, the Reserve Regiment contributed to the Household Battalion. In 1918, the regiment was converted to the 1st Battalion, Guards Machine Gun Regiment. It was reconstituted in 1919 and was amalgamated with the 2nd Life Guards in 1922 to form the Life Guards.

The battle honours of the regiment were:

The Colonels-in-Chief of the regiment were:

The colonels of the regiment were: