Paul David CC GOQ (December 25, 1919 – April 5, 1999) was a Canadian cardiologist, founder of the Montreal Heart Institute, and Senator. Born in Montreal, Quebec, the son of Louis-Athanase David and Antonia Nantel, he received his Bachelor's degree from the University of Paris in 1939 and his MD from the Université de Montréal in 1944. He specialized in cardiology in Boston at the Massachusetts General Hospital in 1946 and in Paris at the Hôpital Lareboisière in 1947. Upon his return to Montreal, he worked at the Notre-Dame Hospital. He founded the Montreal Heart Institute in 1954. It was under his direction that the first heart transplant ever performed in Canada was carried out at the Institute, in 1968.