Over the past decades, the field of memory studies has produced a wealth of research on explicit (conscious, commemorative, official) collective memory. But beyond this realm of the visible, there is a largely hidden world of ‘implicit collective memory’. Elements of this invisible world include narrative schemata, stereotypes, patterns of framing, or world models, which are usually not explicitly known or addressed, but get passed on from generation to generation – in order to shape perception and action in new situations. Implicit collective memory is pervasive and powerful. But it is difficult to trace. It is therefore time to join forces for its systematic study: Drawing on approaches from psychology, sociology, communication studies, anthropology, media culture studies, literary studies, and mnemohistory, this article proposes some building blocks for a future transdisciplinary field of research on implicit collective memory.