The Battle of Dupplin Moor was fought between supporters of King David II of Scotland, the son of King Robert Bruce, and English-backed invaders supporting Edward Balliol, son of King John I of Scotland, on 11 August 1332. It took place a little to the south-west of Perth, Scotland, when a Scottish force commanded by Donald, Earl of Mar, estimated to have been stronger than 15,000 and possibly as many as 40,000 men, attacked a largely English force of 1,500 commanded by Balliol and Henry Beaumont, Earl of Buchan. This was the first major battle of the Second War of Scottish Independence.

David II 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 their 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.