This paper seeks to understand the nature and characteristics of Canadian national intelligence culture post–Cold War using the analytical insights of the strategic culture and intelligence culture literature. Previous studies have focused on an organizational description or historical studies of Canadian intelligence during the Cold War or after 9/11. Yet, no studies have examined the characterization of a national intelligence culture in Canada and proposed to contextualize the Canadian intelligence system in light of its national intelligence culture. Building on a culturalist approach of national intelligence systems, this paper proposes an operationalization of the national intelligence culture concept drawn on the strategic and intelligence culture literature. The paper concludes that Canada’s national intelligence culture is mostly defensive and minimalist. However, we note that recent changes in the Canadian intelligence apparatus have led to a gradual evolution of Canadian intelligence from defensive to offensive.