Richard Cornwallis Neville, 4th Baron Braybrooke (17 March 1820 – 4 February 1861) was a British archaeologist.
On 2 June 1837 he was gazetted an ensign and lieutenant in the Grenadier Guards, and served with that regiment in Canada during the rebellion in the winter of 1838.
For some years, aided by his sister, he devoted himself to the study of natural history, and to the investigation of the Roman and Saxon remains in the neighbourhood of Audley End, Essex, and ultimately attained a distinguished position among the practical archæologists of his day.
At one period geology was his favourite pursuit, and he formed a collection of fossils, which he presented to the museum at Saffron Walden.
The most remarkable feature, however, of his collections at Audley End is the museum of antiquities of every period, the creation of his own exertions, and consisting almost exclusively of objects brought to light at the Roman station at Great Chesterford, or at other sites of Roman occupation in the vicinity of Audley End, and at the Saxon cemeteries excavated under his directions near Little Wilbraham and Linton in Cambridgeshire during 1851 and 1852.
He was hereditary visitor of Magdalene College, Cambridge, high steward of Wokingham, Berkshire, and vice-lieutenant of the county of Essex.
He died at Audley End on 22 Feb. 1861, having married on 27 Jan. 1852 Lady Charlotte Sarah Graham Toler, sixth daughter of Hector Graham-Toler, 2nd Earl of Norbury.