Charles Augustus Bennet, 6th Earl of Tankerville PC (10 January 1810 – 18 December 1899), styled Lord Ossulston between 1822 and 1859, was a British peer and Conservative politician. He served as Captain of the Honourable Corps of Gentlemen-at-Arms between 1866 and 1867 and as Lord Steward of the Household between 1867 and 1868.