When asking which religion is fastest growing in Australia, the raw data from the Australian Bureau of Statistics reveals a dual reality: while Hinduism is the fastest-growing faith by percentage, Islam and "No Religion" are expanding rapidly in sheer numbers. According to the 2021 Census, Hinduism grew by hundreds of thousands of adherents, fueled primarily by skilled migration from South Asia. This shift represents a seismic recalibration of the Australian spiritual landscape, moving away from its historically monolithic Christian roots toward a more fragmented, vibrant, and pluralistic mosaic of belief. Let's be clear: the pews are changing, and they are changing fast.