In this research note we describe the introduction and evolution of Australia's approach to regulating lobbyists. We examine how the lobbying regulations in place across Australia today compare with each other, as well as with lobbying regulations in some other countries around the world. The regulations in each Australian jurisdiction are classified according to their characteristics, providing insights into their commonalities and differences. © 2011 The Authors. Australian Journal of Politics and History © 2011 School of History, Philosophy, Religion and Classics, School of Political Science and International Studies, The University of Queensland and Blackwell Publishing Asia Pty Ltd.