In this introductory article I contextualise, historically and theoretically, the rapport between Durkheimianism and violence. Telescoping Durkheimian theories of anomie, sacrifice and effervescence, I demonstrate how both Durkheim and Mauss, arguably the most prominent members of the French School of Sociology, found themselves constantly reflecting on violence in all its forms while never outlining an explicit theory of violence. Violence was thus the dark spot of their enterprises, at once omnipresent but disavowed. I weave together the various fragments of their oeuvres that illuminate the ground of the Durkheimian theory of violence and also examine the precise reasons for its lack of clear theorisation. I conclude with some remarks on Durkheim and fascism. Therefore, this article serves to supplement and set the stage for the articles that appear in this volume, pieces that in their own ways grapple with similar problematics while also moving beyond them and charting new directions in Durkheimian studies.