In the physical sciences a realist ontology rests on our ability to demonstrate the actual and real nature of material entities. Realist metaphysics of social entities, most influentially Bhaskar's critical realism, attempt to provide a related philosophical foundation for the social sciences. This paper examines the central issue of what is real about society it concludes that social relations and the organisations they constitute do exist and discusses the conditions of their demonstration. Realist interpretations of Bourdieu's theories are given particular (...) attention in an argument that accepts the necessity of social realism but remains cautious about the development of methodologies able to provide effective demonstration. (shrink)