Phil Gold (born September 17, 1936) is a Canadian physician, scientist, and professor. Born in Montreal, Quebec, he received a BSc degree in 1957, a MSc degree in 1961, a MD degree in 1961, and a PhD in 1965 from McGill University. He obtained his Royal College of Physicians and Surgeons of Canada fellowship certification in Internal Medicine in November 1966. In 1965, he co-discovered with Samuel O. Freedman the carcinoembryonic antigen (CEA), which resulted in a blood test used in the diagnosis and management of people with cancer.He is the Douglas G. Cameron Professor of Medicine, and Professor of Physiology and Oncology, at McGill University. He was Chairman of the Department of Medicine at McGill and Physician-in-Chief at the Montreal General Hospital. In 1978, he was made an Officer of the Order of Canada and promoted to Companion in 1985. In 1989, he was made an Officer of the National Order of Quebec and promoted to Grand Officer in 2019. In 1977, he was made a Fellow of the Royal Society of Canada. In 1978, he was awarded the Gairdner Foundation International Award, awarded to three to six people for outstanding discoveries or contributions to medical science. He was awarded the Queen Elizabeth II Silver Jubilee Medal and the 125th Anniversary of the Confederation of Canada Medal. On April 13, 2010, he was inducted into the Canadian Medical Hall of Fame.