| Earldom of Camperdown | |
| Creation Date: | 12 September 1831 |
| First Holder: | Robert Dundas Haldane-Duncan, 1st Earl of Camperdown |
| Last Holder: | George Alexander Philips Haldane Haldane-Duncan, 4th Earl of Camperdown |
| Subsidiary Titles: | Viscount Duncan Viscount Duncan |
| Status: | Extinct |
| Extinction Date: | 5 December 1933 |
| Motto: | Above the 1st crest: DISCE PATI (learn to suffer) Above the 2nd crest: SUFFER Below the shield: SECUNDIS DUBIISQUE RECTUS (Firm in every fortune). |
Earl of Camperdown, of Lundie in the County of Forfar and of Gleneagles in the County of Perth, was a title in the Peerage of the United Kingdom. It was created in 1831 for Robert Haldane-Duncan, 2nd Viscount Duncan. He was the son of the noted naval commander Admiral Adam Duncan,[1] Baron of Lundie who was Commander-in-Chief of the North Sea from 1795 to 1801 and defeated a Franco-Dutch fleet at the Battle of Camperdown in October 1797. Later the same month he was honoured when he was raised to the Peerage of Great Britain as Baron Duncan, of Lundie in the Shire of Perth, and Viscount Duncan, of Camperdown and of Lundie in Our Shire of Perth. The first Earl was succeeded by his son, the second Earl.[2] He was a Liberal politician and held minor office under Lord Palmerston from 1855 to 1858. Lord Camperdown assumed the additional surname of Haldane, which was the maiden name of his paternal grandmother. On his early death the titles passed to his eldest son, the third Earl. He was also a Liberal politician and served under William Ewart Gladstone as a Lord of the Admiralty from 1870 to 1874. He never married and was succeeded by his younger brother, the fourth Earl. He emigrated to Boston, Massachusetts, where he also died. Lord Camperdown was childless and on his death in 1933 all his titles became extinct.[3]
William Duncan, uncle of the first Viscount, was created a baronet in 1764 (see Duncan baronets).