Major Archibald Alexander Gordon alias Major Gordon CBE, MVO, KStJ, JP, Officer in the Order of Leopold (BE), Commander in de Order of the Crown (BE), Commander in the Order of Leopold II (BE), Officer in the Legion of Honour (FR), Order of Saint Anne, 4th Class (RUS), Commander of the Order of the Crown of Italy (IT), was a British soldier who served as attaché to the Military Household of King Albert I of Belgium during World War I, with the title of Belgian King's Messenger. He is the younger brother of William Eagleson Gordon, who was awarded the Victoria Cross. The alias Major Gordon was given to him by the Belgian Military Household of King Albert and was later confirmed to him by Princess Marie-José of Belgium in Hardelot on 19 July 1918.

Colonel William Eagleson Gordon, VC, CBE was a Scottish British Army officer and recipient of the Victoria Cross, the highest and most prestigious award for gallantry in the face of the enemy that can be awarded to British and Commonwealth forces. He is the older brother of Archibald Alexander Gordon, who received the Legion of Honour and Order of Leopold.