Western democracies experience profound conflicts that induce concerns about polarization and social cohesion. Yet although conflicts are a core feature of democracies, the forms, functions, and dynamics of democratic conflicts have rarely been subject of political theory. This paper aims at furthering our understanding of democratic conflicts. It analyzes the theory of conflict in Mouffe's agonistic pluralism, confronts it with sociological conflict theory, and presents concrete points of departure for a more comprehensive theory of democratic conflicts. The paper, thus, contributes (...) to two lines of research: (1) Regarding agonistic theories, the paper shows that agonistic pluralism fails to provide a convincing theory of conflict since it underestimates the mechanisms and effects of conflict dynamics (e.g. intergroup cohesion, intragroup conflict, domination, and escalation) and fails to account for the variety of conflict interactions. Proponents of agonistic pluralism should therefore invest more into clarifying their core concept. (2) For a general account of democratic conflicts, the paper proposes to pursue interdisciplinary research on the cognitive concepts shaping conflict interactions, the linked practices of conflict regulation, and the processual dynamics of conflicts. (shrink)