David II (5 March 1324 – 22 February 1371) was King of Scotland from 1329 until his death in 1371. Upon the death of his father, Robert the Bruce, David succeeded to the throne at the age of five and was crowned at Scone in November 1331, becoming the first Scottish monarch to be anointed at his coronation. During his childhood, David was governed by a series of guardians, and Edward III of England sought to take advantage of David's minority by supporting an invasion of Scotland by Edward Balliol, beginning the Second War of Scottish Independence. Following the English victory at the Battle of Halidon Hill in 1333, King David, Queen Joan and the rump of his government were evacuated to France, where he remained in exile until it was safe for him to return to Scotland in 1341.

In 1346, David invaded England in support of France during the Hundred Years' War. His army was defeated at the Battle of Neville's Cross and he was captured and held as a prisoner in England for eleven years, while his nephew Robert Stewart governed Scotland. In 1357 the Treaty of Berwick brought the Second War of Independence to an end, the Scots agreed to pay a ransom of 100,000 merks, and David was allowed to return home. Heavy taxation was needed to pay for the ransom, which was to be paid in instalments, and David alienated his subjects by using the money for his own purposes. By 1363 it was found impossible to raise the remaining ransom, and David sought its cancellation by offering to bequeath the succession to the Scottish throne to Edward III or one of his sons. In 1364, the parliament of Scotland rejected David's proposal to make Lionel of Antwerp, Duke of Clarence, the next king. Despising his nephew, David sought to prevent him from succeeding to his throne by marrying his mistress Margaret Drummond and producing an alternative heir. When his second wife failed to do so, David unsuccessfully attempted to divorce her.

Although David spent long periods in exile or captivity, he managed to ensure the survival of his kingdom, reformed the machinery of government, and left the Scottish monarchy in a strong position. The last male of the House of Bruce, he died childless in 1371 after a reign of 41 years and was succeeded by his nephew Robert II.

David II was born on 5 March 1324 at Dunfermline Abbey in Fife, one of twin sons born to King Robert the Bruce, and Elizabeth de Burgh. Soon after his birth he was wet nursed at the Bishop of St Andrews' manor at Inchmurdoch in Fife. David was created Earl of Carrick by his father in 1326, and an official household was established for the prince at Turnberry Castle. Very little is known of his youth, though it is recorded that King Robert paid for Dominican friars to educate David, and also purchased books for him. David's mother died in 1327, when he was three years old. In accordance with the Treaty of Edinburgh–Northampton's terms, on 17 July 1328, when he was four years old, David was married to seven-year-old Joan, the daughter of Edward II of England and Isabella of France, at Berwick Castle. The young earl of Carrick received a visit from his ailing father at Turnberry in February 1329.

David became king upon the death of his father on 7 June 1329. David II's youth and the uncertainty of the Anglo-Scottish peace meant he was not moved from Turnberry to Scone for his coronation for two-and-a-half years. The seven-year-old king and his wife were crowned at Scone Abbey on 24 November 1331, with David becoming the first Scottish monarch to be anointed at their coronation. Upon David's accession, Thomas Randolph, 1st Earl of Moray was appointed as Guardian under Robert I's orders, to govern Scotland until David reached adulthood, and the royal government of King Robert remained largely in place from 1329 to 1332. After Moray's death, on 20 July 1332, he was replaced by Donald, Earl of Mar, elected by an assembly of the magnates of Scotland at Perth, 2 August 1332. Ten days later, Mar fell at the Battle of Dupplin Moor. Sir Andrew Murray of Bothwell, who was married to Christian (or Christina), the sister of King Robert I, was chosen as the new Guardian. The English took him prisoner at Roxburgh in April 1333 and was accordingly replaced as Guardian by Archibald Douglas (the Tyneman), who fell at the Battle of Halidon Hill that July.

Meanwhile, on 24 September 1332, following the Scots' defeat at Dupplin, Edward Balliol, a protégé of Edward III of England, and a pretender to the throne of Scotland, was crowned by the English and his Scots adherents. By December, however, Balliol was forced to flee to England after the Battle of Annan, although he returned the following year as part of an invasion force led by the English king.

Following the English victory at the Battle of Halidon Hill in July 1333, David and his wife were sent for safety into France, reaching Boulogne on 14 May 1334. They were received very graciously by King Philip VI. Little is known about the life of the Scottish king in France, except that Château Gaillard was given to him for a residence, and that he was present at the bloodless meeting of the English and French armies in October 1339 at Vironfosse, now known as Buironfosse, in the Arrondissement of Vervins. He led a raid on the Channel Islands in 1336 that was so devastating that the Royal Militia of the Island of Jersey was created, making it the oldest British Army unit.

By 1341, David's representatives had again obtained the upper hand in Scotland. David was able to return to his kingdom, landing at Inverbervie in Kincardineshire on 2 June 1341. He took the reins of government into his own hands, at the age of 17.