William Sackville, 11th Earl De La Warr

William Herbrand Sackville, 11th Earl De La Warr DL /ˈdɛləwɛər/ (born 10 April 1948) is a British nobleman and peer. He was styled Lord Buckhurst from 1976 until 9 February 1988, when he inherited upon the death of his father William Sackville, 10th Earl De La Warr.

Lord De La Warr was educated at Eton College. His financial career in the City of London began in 1976 as an investment banker working at Mullens & Co. For 24 years, he was a director of Laing & Cruickshank and later of its owner Credit Lyonnais Securities, where he published a tip sheet called The Earl's Earner and worked in senior equity sales. He was later a director of Shore Capital, working with its natural resources team in sales, and subsequently became a director of Cluff Natural Resources. In April 2016, he joined hedge fund Toscafund Asset Management as a partner.

He is a member of White's, the Turf Club, and Pratt's, traditional gentlemen's clubs in London. In addition to his work in the City of London, he was a dairy farmer, and as of 2016^[update] continued to raise livestock at his family seat, Buckhurst Park in East Sussex.