Both social movement research and the literature on the commons provide rich accounts of the anti-austerity mobilizations and uprisings in southern Europe. Movement studies offer important insights regarding the context of mobilization and collective claim making. The commons literature emphasizes bottom-up practices of shared ownership, self-management, and social co-production that move beyond institutional solutions. Although both literatures highlight similar phenomena, they remain relatively unconnected. Their distance precludes a full grasp of the implications regarding the dynamic and abundant to-and-fro movement between protest-based politics and everyday forms of collective action in this region, which is heavily affected by the crisis’ austerity management. Drawing on the South European context, this article rethinks key concepts addressed in both literatures (social movements-commons, activists-commoners, mobilization-commoning) and highlights how a conceptual synthesis can sharpen and (re)politicize the theorization of contemporary collective action in the everyday.