Sidney Wortley Montagu (28 July 1650 – 1727), of Wortley, Yorkshire and Walcot, Northamptonshire, was a British coal-owner and Whig politician who sat in the English and British House of Commons between 1679 and 1727. He was one of the leading coal owners in the North-East and a member of powerful coal cartels. Although he served in Parliament over a long period, his contributions there were limited.