PurposeIn museum research, museums are held as vital in maintaining the public sphere. This scoping review takes stock of the present status of museum–public sphere research by providing an overview of the existing literature as a point of departure for future research. In short, it maps the research aims, theoretical concepts, research methods and findings within the field and identifies research gaps.Design/methodology/approachA scoping review methodology is used to provide a knowledge synthesis of the museum–public sphere literature. This approach is instrumental for researching multi-disciplinary, fragmented or underdeveloped research fields. Reviews can help identify otherwise easily overlooked gaps in the research literature and are an essential tool.FindingsOverwhelmingly, the published literature consists of case studies, some of which are theoretically ambitious. Still, cases are selected without explicit goals regarding analytical or theoretical generalization, and the studies are not placed within a theory-building framework. Moreover, the museum–public sphere research primarily focuses on museums in the core Anglosphere countries and is conducted by researchers affiliated with institutions in those countries. The museum–community relationship is a common research theme addressing engagement with the public through either visitor participation or community participation.Originality/valueThis is the first published scoping review or systematically conducted review and knowledge synthesis of the museum–public sphere research literature to our knowledge. The article finds and discusses a range of research gaps that need to be addressed theoretically and empirically.