This editorial introduces the 12 articles collected in this special issue on Remembering Activism: Explorations in the memory-activism nexus. It frames the articles within current debates in the field of memory studies and social movement studies on the entanglements between memory work, on the one hand, and activism directed towards social transformation, on the other. In particular, it highlights the ways in which the memory of earlier activism is mobilised within later movements; in the process, it also identifies various forms of activist memory work where remembrance is an integral part of the activist repertoire and one of the means used to achieve political ends.