Marion Maddox is a Professor in the department of Modern History, Politics and International Relations at Macquarie University. Maddox achieved doctorates in theology and political philosophy from Flinders University and the University of New South Wales respectively. She is also the recipient of an Australian Parliamentary Fellowship. Maddox has worked at Victoria University of Wellington, New Zealand, and the Universities of Adelaide and South Australia. In November 2017 she was elected fellow of the Australian Academy of the Humanities.

Maddox is a regular commentator on issues of religion and politics in the Australian media and is a member of the Uniting Church. She authored the book God Under Howard: The rise of the religious right in Australian politics, which compared the Howard Government with the religious right in the United States.