| Murdoch Stewart | |
|---|---|
| Duke of Albany, Earl of Fife & Menteith | |
 Detail from the seal of Murdoch Stewart | |
| Governor of Scotland | |
| Tenure | 1420–1424 |
| Predecessor | Robert Stewart |
| Successor | James I (as king) |
| Born | 1362 |
| Died | 24 May 1425 |
| Spouse | Isabella, Countess of Lennox |
| Issue | Robert Stewart Walter Stewart Alexander Stewart James the Fat Isabel |
| House | Stewart (Albany branch) |
| Father | Robert Stewart, Duke of Albany |
| Mother | Margaret, Countess of Menteith |
Murdoch Stewart, Duke of Albany (Scottish Gaelic: Muireadhach Stiubhart) (1362 – 24 May 1425) was a leading Scottish nobleman, the son of Robert Stewart, Duke of Albany, and the grandson of King Robert II of Scotland, who founded the Stewart dynasty. In 1389, he became Justiciar North of the Forth. In 1402, he was captured at the Battle of Homildon Hill and would spend 12 years in captivity in England.
After his father died in 1420, and while the uncrowned King James I of Scotland was himself held captive in England, Stewart served as Governor of Scotland until 1424, when James was finally ransomed and returned to Scotland. However, in 1425, soon after James's coronation, Stewart was arrested, found guilty of treason, and executed, along with two of his sons. His only surviving heir was James the Fat, who escaped to Antrim, Ireland, where he died in 1429. Stewart's wife Isabella of Lennox survived the destruction of her family. She lived to see the assassination of James I and the restoration of her title and estates.