Lord James Douglas (1617–1645) was a Scottish nobleman and soldier.
He was born at Douglas Castle, Douglas, South Lanarkshire, the son of William Douglas, 1st Marquess of Douglas, and his wife Margaret Hamilton, a daughter of Claud Hamilton, 1st Lord Paisley.
Douglas was sent at an early age to the court of Louis XIII, where he was served the King as a Page, where he steadily moved through the levels of the Maison du Roi.