Léon Eugène Bérard (17 February 1870, in Morez - 2 September 1956, in Lyon) was a French surgeon and oncologist. He was the younger brother of Hellenist scholar Victor Bérard (1864–1931).
He studied medicine in Lyon obtaining his doctorate in 1896. In 1898 he earned his agrégation in surgery, later being assigned as a surgeon to Lyon hospitals (1901). In 1914 he became a professor of clinical surgery, and from 1923 to 1940 served as director of the cancer centre in Lyon (later named the "Centre Léon-Bérard" in his honor).[1] Known for his pioneer work in the fight against cancer, he was among the first physicians to utilize radium as a treatment for cancer of the buccal mucosa and for cancer of the cervix.[1]
He was a member of the Société de chirurgie de Lyon and of the Société nationale de médecine et des sciences médicales de Lyon. From 1946 to 1956 he was a corresponding member of the Académie des sciences.[1]