In recent years, we have seen a proliferation of research on discursive legitimation, which has shed light on how legitimacy is established through communication. However, this body of work remains fragmented, and there is a need to synthesize and develop a more comprehensive and in-depth theoretical understanding of this vibrant area of research. This article aims to address this need by providing an integrative theoretical framework and outlining an agenda for future research. The framework encompasses five key elements of discursive legitimation: strategies, positions, foundations, temporality, and arenas. Drawing on this framework, we present a research agenda that highlights key topics related to these elements along with theoretical and methodological considerations cutting across them. Our contribution lies in conceptualizing discursive legitimation as a multifaceted and dynamic phenomenon, offering a complementary framework to existing models and paving the way for future studies, and placing discursive strategies—which have been the focus of prior research—in context by highlighting the critical role of key discursive elements in enabling or constraining legitimation processes.