James Duncan Hamilton (30 April 1920 in Cork, County Cork, Ireland – 13 May 1994 in Sherborne, Dorset, England) was a British racing driver. He was famed for his colourful and extrovert personality, which often overshadowed his genuine talent. After fighting in, and surviving the Second World War, he took up motorsport. Although adept in single-seaters, sportscars was where he enjoyed most success, winning the 1953 24 Hours of Le Mans, two Coupe de Paris events, and the 12 heures internationals Reims race in 1956. He retired in 1958 and ran a garage in Bagshot, Surrey for many years. He died from lung cancer in 1994.