David Khayat (born August 27, 1956) is a French oncologist. Head of the Department of Medical Oncology at the Pitié-Salpêtrière Hospital since 1990, he is also Professor of oncology at the University Pierre and Marie Curie and adjunct Professor at the MD Anderson Cancer Center in Houston, Texas. He was elected at the American Society of Clinical Oncology board in 2013.Organiser of the World Summit against Cancer at the UNESCO, he initiated the Charter of Paris against Cancer and headed the between April 2004 and September 2006. He is its Honorary President now.Professor Khayat is the founder and the President of the Foundation AVEC, a non-profit organisation declared of public utility since 2013 (dissolved in 2020) .He also became a consultant for various industries in the 2010s; in parti