Lord William Manners (13 November 1697 – 23 April 1772), of Croxton Park, Leicestershire was an English nobleman and Whig politician who sat in the House of Commons between 1719 and 1754. He was also was the second son of John Manners, 2nd Duke of Rutland and his first wife, Catherine Russell. His brothers John, Robert and Sherard were also Members of Parliament.