General Lord Robert Manners was an English soldier and nobleman. He was a son of John Manners, 2nd Duke of Rutland and his second wife, Lucy Sherard.

John Manners, 2nd Duke of Rutland KG, styled Lord Roos from 1679 to 1703 and Marquess of Granby from 1703 to 1711, was a British Whig politician who sat in the English and British House of Commons from 1701 until 1711, when he succeeded to the peerage as Duke of Rutland.