This thesis explores critically two central notions in the work of Ernesto Laclau: populism and hegemony. From analytical and strategic points of view, some incongruities stand out. For example, the conceptual proximity between the two often hinders their respective explanatory and political purchase. Moreover, Laclau's arguments in support of left-wing populism appear not to examine in sufficient depth some important issues, such as the non-necessary but also potentially problematic relationship between populism and democracy and the question of the leader. In this thesis I examine Laclau's work and interpretations of his work before offering a fresh interpretation that will both retain and enhance the distinctiveness and relevance of popu...