General Sir David Graham Muschet Campbell, GCB (28 January 1869 – 12 March 1936) was a cavalry officer of the British Army, an amateur sportsman, and later Governor of Malta.

After home service in Britain and Ireland his regiment, 9th Queen's Royal Lancers, was posted to South Africa in 1896, and on to India in 1898, though Campbell seems to have spent some of this period in the United Kingdom.

He led them in two cavalry charges in the first months of the war; the second of these saw him receive multiple wounds, one of them from a lance, making him one of the last British casualties of that weapon.

[8] Over this time, Campbell had begun to make a name for himself as an amateur jockey,[2] and on 9 March 1894 at the Grand Military Meeting at Sandown Park he won the Maiden Steeplechase on The Soarer,[9] a horse he had acquired on the toss of a coin.

[18] Though he had actually sold Soarer to Hall Walker a few weeks earlier, that was still the horse he rode to his greatest victory, in the Grand National at Aintree on 27 March.

[19] He also repeated his victory in the Irish National Hunt Cup (this time on Lord Arravale);[18] and in polo, 1896 saw him on the winning side in both the Subalterns' and the Inter-Regimental tournaments, a record still unmatched at his death.

[2] In 1897, Campbell tried to repeat his Grand National triumph, once more on Soarer, but he fell on the second lap of the course at the fence after Becher's Brook, breaking his collar bone.

[2][18] The 9th Lancers had actually been posted to South Africa in August 1896, arriving at Durban in September, before travelling on to Pietermaritzburg and later, the then little known town of Ladysmith.

They landed at Bombay (now Mumbai), and travelled from there to a base at Muttra, arriving on 10 October 1898; the remainder of the year was spent in exercises around Delhi and Aligarh.

[34] In the early days of the First World War he led his regiment, with two squadrons of the 4th Dragoon Guards, in a charge at Elouges on 24 August 1914, as part of the Battle of Mons.

"[36] In November 1914 Campbell was promoted to the temporary rank of brigadier general to command 6th Cavalry Brigade, taking over from Ernest Makins.

[2][39] His divisional staff, which included Harold Franklyn, a future full general and commander of the 5th Infantry Division during the Second World War, gave him the further nickname of "Barbara", the reason for which is no longer known.

Political tensions between pro-British and pro-Italian parties on the island led to him dissolving the elected assembly and returning Malta to direct rule, a situation which would last until after the Second World War.

One of the houses at Saint Edward's College, a private school for boys founded by the Strickland family in 1929 was named in his honour.