Clementina Elizabeth Drummond-Willoughby, 24th Baroness Willoughby de Eresby (2 September 1809, London – 13 November 1888, Grimsthorpe Castle) was a suo jure British baroness. She was the daughter of Peter Robert Drummond-Burrell, 22nd Baron Willoughby de Eresby (died 1865) and (died 1865). On the death of her brother, Albyric Drummond-Willoughby, 23rd Baron Willoughby de Eresby, in 1871, the Barony of Willoughby de Eresby fell into abeyance between her sister, Charlotte, and her. On 13 November 1871, the abeyance of the barony was terminated in her favour.