Constantine Edmund Walter Phipps, 5th Marquess of Normanby (born 24 February 1954), is a British peer, novelist, poet, and entrepreneur.
He was educated at Eton, Worcester College, Oxford, and City University of London.
He succeeded to the marquessate and other titles upon the death of his father in 1994 and entered the House of Lords as a crossbencher.
In 1998 he sold the 11,000-acre (45 km2) Warter Priory estate, near Pocklington, East Riding of Yorkshire, to businessman Malcolm Healey for a reported £48 million.
They have three children:[4][5] Normanby is the author of three novels under the name Constantine Phipps: Careful with the Sharks (1985), Among the Thin Ghosts (1989), and What You Want (2014).