Are refugee ‘return’ and ‘repatriation’ the same thing? This article investigates the mid-century emergence of these two key concepts in the context of the entangled histories of post-1945 displacement and resettlement in Palestine/Israel, which has long had the dubious distinction of serving as a central site of international experimentation vis-à-vis modern questions surrounding mass expulsion and the possibilities of return. Despite the deeply interwoven nature of Palestinian and Jewish displacement, scholars have generally accepted these histories as distinct and segregated national memories. Such accounts actively ignore a crucial set of actors in the making of these forced migrations and their aftermaths: the ‘international community’, made up mainly of the victorious Allied powers, who constructed the framework within which such nationally bounded interpretations could be perpetuated and sustained. This article therefore aims to bring the international dimension to the forefront and to combine it with the history of concepts (Begriffsgeschichte) to examine how the concepts of ‘return’ and ‘repatriation’ evolved – and diverged – in the aftermath of the Second World War, in the context of an emerging modern international refugee regime designed primarily to serve superpower interests.