George Monck, 1st Duke of Albemarle JP KG PC (6 December 1608 – 3 January 1670) was an English soldier, who fought on both sides during the Wars of the Three Kingdoms. A prominent military figure under the Commonwealth, his support was crucial to the Restoration of Charles II in 1660, who rewarded him with the title Duke of Albemarle and other senior positions.

The younger son of an impoverished Devon landowner, Monck began his military career in 1625 and served in the Eighty Years' War until 1638, when he returned to England. Posted to Ireland as part of the army sent to suppress the Irish Rebellion of 1641, he quickly gained a reputation for efficiency and ruthlessness. After Charles I agreed to a truce with the Catholic Confederacy in September 1643, he was captured fighting for the Royalists at Nantwich in January 1644 and remained a prisoner for the next two years.

Released in 1647, he was named Parliamentarian commander in Eastern Ulster, fought in Scotland under Oliver Cromwell in the 1650 to 1651 Third English Civil War, and served as General at sea during the 1652 to 1654 First Anglo-Dutch War. From 1655 to 1660, he was army commander in Scotland and his support for moderates in Parliament who wanted to restore the monarchy proved decisive in Charles II regaining his throne in May 1660.

A combination of illness and lack of interest in politics meant Monck faded into the background after 1660 but he returned to sea during the Second Anglo-Dutch War and played an important leadership role during the 1665 Great Plague of London, as well as the Great Fire of London in 1666. He lived in retirement for the last three years of his life and died in January 1670.