The proportion of Christians in the Australian population continues to decline. Internationally, the proportion of Christians in developing countries is tending to increase, whereas the proportion of Christians in developed countries generally is decreasing. This paper first provides a brief overview of the current Australian demographic data and trends in relation to Christian denominations and other religious groups over the past 100 years. Based on Christianity’s past contribution to Australian society, it then posits a framework for a way forward to contribute to the current and future issues and problems confronting Christianity in Australian society.