This edited collection explores citizenship in a transnational perspective, with a focus on Australia, Canada, and New Zealand. It adopts a multi-disciplinary approach and offers historical, legal, political, and sociological perspectives. The two overarching themes of the book are ethnicity and Indigeneity. The contributions in the collection come from widely respected international scholars who approach the subject of citizenship from a range of perspectives: some arguing for a post-citizenship world, others questioning the very concept itself, or its application to Indigenous nations.