Sir Archibald Campbell KB (21 August 1739 – 31 March 1791) was a British Army officer, colonial administrator and politician who served as governor of Georgia, Jamaica, and Madras.

He grew up with his family at Dunderave Castle, and enjoyed the patronage of both Archibald Campbell, 3rd Duke of Argyll and Henry Dundas, 1st Viscount Melville.

With Captain Henry Watson, he privately invested in a dockyard at Kidderpore, and the two men acted as contractors for building and repairing ships until the government bought their concern.

Soon afterwards he was granted total freedom within the confine of the town of Concord, and during these years as a prisoner of war he was able to purchase the Knap estate back in Argyll.

Six months after his release, Campbell was ordered to lead 3,000 men from New York to Georgia, and in late December his army won the Battle of Savannah, followed by another victory at Augusta.

Greene related of Campbell:[citation needed] As conqueror of Savannah, his immediate care was to soften the asperities of war, and to reconcile to his equitable government, those who had submitted, in the first instance, to the superiority of his arms.

Such of the inhabitants as voluntarily made a tender of service, were favourably received; but he was ever disinclined to invite them to take up arms in the British cause, lest in the fluctuating councils of his governments, he should lead them to destruction.

He had too frequently seen them lavished of professions of permanent support, leaving their deluded adherents to the mercy of the government, which, in an evil hour, they had abandoned.

Lieutenant Colonel Campbell had too nice a sense of honour to be made instrument of injustice and oppression, and he was speedily called upon to relinquish his command, to a superior, less scrupulous and better disposed to second the harsh measures of the Commander in Chief.He became provisional governor of Georgia then and named Jacques Marcus Prevost his lieutenant and successor before returning to England.

Returning to Britain, in July 1779,[2] he married Amelia (1755–1813), daughter of Allan Ramsay of Kinkell, Principal Painter in Ordinary to George III.

By lending some of his troops to serve as marines, he materially aided Admiral Rodney in his great victory over François Joseph Paul de Grasse at the Battle of the Saintes, saving Jamaica from a French invasion.

In India, Madras was exhausted after the war against Mysore, and no serious military operations were undertaken until renewed hostilities against that state became inevitable at the end of 1789.

Madras sustained a serious loss when, overcome by illness, he was forced to leave India in February 1789, retiring from the post of governor in 1790.

[citation needed] Following a cold caught coming up from Scotland, he died the following year, 31 March 1791, at his newly purchased London home on Upper Grosvenor Street, bought from the Duke of Montrose.

[3] Also buried in the Abbey are his nephew, Lt.-General Sir James Campbell of Inverneill and his wife's kinsmen, the Earl of Mansfield and Admiral Lindsay.