Peregrine Bertie, 3rd Duke of Ancaster and Kesteven

General His Grace The Duke of Ancaster and Kesteven PC
Lord Great Chamberlain
In office 1742–1778
Preceded by	The Duke of Ancaster and Kesteven
Succeeded by	The Duke of Ancaster and Kesteven
Personal details
Born	Peregrine Bertie 1714 England
Died	12 August 1778(1778-08-12) (aged 63–64) England
Spouse(s)	Elizabeth Blundell Mary Panton
Children	Lady Mary Catherine Bertie Peregrine Thomas Bertie, Marquess of Lindsey Robert Bertie, 4th Duke of Ancaster and Kesteven Priscilla Bertie, 21st Baroness Willoughby de Eresby Georgiana Cholmondeley, Marchioness of Cholmondeley
Parents	Peregrine Bertie, 2nd Duke of Ancaster and Kesteven (father) Jane Brownlow (mother)

General Peregrine Bertie, 3rd Duke of Ancaster and Kesteven PC (1714 – 12 August 1778), styled Lord Willoughby de Eresby from 1715 to 1723 and Marquess of Lindsey from 1735 to 1742, was an English peer.