The Hon. William Carvel "Bill" Graham, PC QC (born March 17, 1939) is a former Canadian politician, who served as Minister of Foreign Affairs, Minister of National Defence, and Leader of the Opposition and interim Leader of the Liberal Party of Canada.
Graham grew up in Montreal and Vancouver, and was educated at Upper Canada College, Trinity College at the University of Toronto, the University of Toronto Faculty of Law (where he was an editor of the Law Review and the gold medalist of 1964), and the University of Paris. As a student, he traveled in the Middle East and Europe. He married the former Catherine Curry in 1962, and they have a daughter, Katherine ("Katy", born in 1964) and a son, the freelance writer Patrick Graham (born in 1965).
After his graduation from law school, Graham went to Paris to pursue a doctorate of laws, with a focus on international law, as well as to improve his French. He also represented the Toronto law firm, Fasken's (where he had articled) in Europe. Upon returning to Toronto in 1968, Graham remained at Fasken's with a practice devoted largely to international trade and commercial law.