List of Famous people with last name Buchan

Alice Comyn, Countess of Buchan, Lady Beaumont was a Scottish noblewoman, a member of the powerful Comyn family which supported the Balliols, claimants to the disputed Scottish throne against their rivals, the Bruces. She was the niece of John Comyn, Earl of Buchan, to whom she was also heiress, and after his death the Earldom of Buchan was successfully claimed by her husband Henry de Beaumont, Earl of Buchan, by right of his wife. His long struggle to claim her Earldom of Buchan was one of the causes of the Second War of Scottish Independence.

Alexander Comyn, 2nd Earl of Buchan was a Scoto-Norman magnate who was one of the most important figures in the 13th century Kingdom of Scotland. He was the son of William Comyn, jure uxoris Earl of Buchan, and Marjory, Countess of Buchan, the heiress of the last native Scottish Mormaer of Buchan, Fergus. He was the chief counsellor of Alexander III, King of Scots for the entire period of the king's majority and, as Scotland's leading magnate, played a key role in safeguarding the independence of the Scottish monarchy. During his long career, Alexander Comyn was Justiciar of Scotia (1258–89), Constable of Scotland (1275–89), Sheriff of Wigtown (1263–66), Sheriff of Dingwall (1264–66), Ballie of Inverie and finally, Guardian of Scotland (1286–89) during the first interregnum following the death of Alexander III. In 1284 he joined with other Scottish noblemen who acknowledged Margaret of Norway as the heiress to King Alexander. He died sometime after 10 July 1289.

James Stewart, 1st Earl of Buchan (1442–1499) was a Scottish noble. He was the uncle of James III of Scotland who granted him the Earldom of Buchan. Buchan repaid his nephew by fighting for his cause against rebellious southern barons. Through his marriage to Margaret Ogilvy he acquired the title Lord Auchterhouse.

Alexander Stewart, Earl of Buchan, Alasdair Mór mac an Rígh, and called the Wolf of Badenoch, was the third surviving son of King Robert II of Scotland and youngest by his first wife, Elizabeth Mure of Rowallan. He was the first Earl of Buchan since John Comyn, from 1382 until his death. Alexander married the widowed Euphemia I, Countess of Ross, but they had no children. He did have a large family by his longtime mistress, Mairead inghean Eachainn. Alexander was Justiciar of Scotia for a time, but not an effective one. He held large territories in the north of Scotland before eventually losing a large part of them. Alexander is remembered for his destruction of the royal burgh of Elgin and its cathedral. His nickname was earned due to his notorious cruelty and rapacity, but there is no proof that it was used during his lifetime.

John Buchan, 1st Baron Tweedsmuir was a Scottish novelist, historian, and Unionist politician who served as Governor General of Canada, the 15th since Canadian Confederation.

Malcolm Harry Erskine, 17th Earl of Buchan was a Scottish landowner and peer, a member of the House of Lords from 1984 until the House of Lords Act 1999 removed most hereditary peers.