Alexander Stewart, 1st Duke of Albany (c. 1454 – 7 August 1485) was the second son of King James II of Scotland, and his Queen consort Mary of Gueldres, daughter of Arnold, Duke of Gelderland.
Created Duke of Albany before 1458, he also received the earldom of March, and lordships of Annandale and the Isle of Man. In 1460 he traveled to the continent, and to Gueldres, the land of his maternal family. On his return in 1464 he was captured by the English.

Family and children
Albany's first wife was Catherine, daughter of William Sinclair, 3rd Earl of Orkney, who bore him three sons and a daughter. This marriage was dissolved in 1478, and as its issue was regarded as illegitimate the title of duke of Albany descended to John (1484-1536, see below), his only son by his second wife, Anne de la Tour d'Auvergne, daughter of Bertrand VI, count of Auvergne and of Boulogne, whom he married in 1480. Alexander and Anne also had a daughter, Maud Stewart, who died young. A son of his first marriage, another Alexander Stewart (before 1477 - 9 December 1537), became bishop of Moray and left lots of illegitimate issue. There was also another son, Andrew Stewart, from the first marriage. The surviving daughter of Alexander, called Margaret Catherine Stewart, was reportedly a bastard and not born of either of his wives. She married Sir Patrick Hamilton of Kincavil (who died 30.4.1520).