John Leonard Dawson

John Leonard Dawson (30 September 1932 – 16 May 1999) was an English surgeon particularly known for his work in the field of liver disease. He pioneered several surgical techniques, including radical tumour resection, injection sclerotherapy and portosystemic shunt surgery. He served as the Serjeant Surgeon to the Royal Household of the United Kingdom, and was described by a peer as "the best general surgeon in London in the 1970s and 1980s". His hepatic focus was important in developing the Liver Unit at King's College Hospital, which was established in 1966 by Roger Williams and soon built an international reputation.