Archibald Douglas, 5th Earl of Angus (c. 1490–1557), was a Scottish nobleman known for his significant role in the political landscape of 16th-century Scotland. He was a member of the powerful Douglas family, which had a long history of influence in Scottish affairs. Archibald became the Earl of Angus after the death of his father, George Douglas, 4th Earl of Angus, and was involved in various conflicts and alliances during his lifetime. Throughout his life, Archibald was a key figure in the struggles between the Scottish crown and the Douglas family. He was known for his shifting loyalties, particularly during the reign of Mary, Queen of Scots. His political maneuvers often placed him at the center of power struggles, reflecting the turbulent nature of Scottish politics during this period.