William Henry Cavendish-BentinckWilliam Henry Cavendish-Bentinck may refer to: William Henry Cavendish Cavendish-Bentinck, 3rd Duke of Portland, British Whig and Tory statesman and Prime Minister Lord William Bentinck, British statesman and governor of India William Henry Cavendish-Bentinck, Marquess of Titchfield, British Member of Parliament