Robert Bertie, 4th Duke of Ancaster and Kesteven, PC, styled Lord Robert Bertie until 1758 and Marquess of Lindsey between 1758 and 1778, was a British peer.
- Occupation
- military officer
- Position held
- Lord Great Chamberlain, Lord Lieutenant of Lincolnshire
- Citizenship
- Kingdom of Great Britain
- Born
- October 17, 1756
- Died
- July 8, 1779
