THIS ARTICLE EXAMINES AUSTRALIAN REFERENDUM PRACTICE WITH the aim of contributing to the growing international debate over concepts of deliberative democracy, defined in terms of democratic regimes structured to maximize community deliberation in public decision-making. Theories of deliberative democracy go beyond earlier approaches to participatory democracy by specifying in greater detail the nature of the deliberative process in which citizens should be able to participate and of the importance of institutions of civil society to an effective deliberative process. The focus on ideals of public deliberation ref lects the ambition of deliberative democrats (the ‘deliberati’ if you will) to ground political decision-making in norms of shared public reason. Where earlier approaches to participatory democracy investigated rights to political participation, current approaches to deliberative democracy also investigate responsibilities of political participants – particularly responsibilities to comply with norms of rational political deliberation.