The 15th conference of The Canadian Number Theory Association (CNTA) will take place from July 9-13, 2018 at Laval University in Quebec City, in the Province of Quebec, Canada. The local organizers are Hugo Chapdelaine, Jean-Marie De Koninck, Antonio Lei and Claude Levesque. The scientific committee is composed of Kathrin Bringmann (University of Cologne), Nils Bruin (Simon Fraser University), Gérard Freixas (CNRS - Institut de Mathématiques de Jussieu), Stephen Kudla (University of Toronto), Matilde Lalin (Université de Montréal), Antonio Lei (Université Laval), and Christelle Vincent (University of Vermont). The conference will feature 8 plenary lectures (including the 2018 Ribenboim prize winner), one public lecture, 20 invited speakers, and probably more than 40 contributed talks. We are expecting more than 300 participants, of which about half will be students and postdocs. As for previous CNTA meetings, attendees will include a substantial number of people from the United States and a sizeable contingent from the rest of the world.