Pharand, Donat Keywords: Arctic | Mots clefs: Arctique | ABSTRACT The polar regions, and particularly the Arctic region, have acquired a considerable importance over the years preceding the writing of the course by Donat Pharand, Professor at the Faculty of Law of University of Ottawa. After a brief description of the physical aspects of the Arctic, the author shows its importance and the legal issues, namely: the Arctic territory, the continental shelf and the seabed, the Arctic Ocean and the ice pack, Arctic airspace, etc. Les régions polaires, et particulièrement la région ar…