The Household Cavalry Composite Regiment was a temporary, wartime-only, cavalry regiment of the British Army consisting of personnel drawn from the 1st Life Guards, 2nd Life Guards and Royal Horse Guards. It was active in 1882 for service in the Anglo-Egyptian War, in 1889-1900 during the Second Boer War, from August to November, 1914 during the opening months of World War I and in World War II.