Objective: Across all of Australia's states and territories, it is legal for a parent or carer to hit their child. In this paper, we outline the legal context for corporal punishment in Australia and the argument for its reform. Methods: We review the laws that allow corporal punishment, the international agreements on children's rights, the evidence on the effects of corporal punishment, and outcomes of legislative reform in countries that have changed their laws to prohibit corporal punishment. Results: Legislative reform typically precedes attitude changes and reductions in the use of corporal punishment. Countries with the most ideal outcomes have instigated public health campaigns educating the population about law reform while also providing access to alternative non-violent discipline strategies. Conclusions: Extensive evidence exists demonstrating the adverse effects of corporal punishment. When countries change legislation, educate the public about these effects, and provide alternative strategies for parents, rates of corporal punishment decrease. Implications for Public Health: We recommend law reform in Australia to prohibit corporal punishment, a public health campaign to increase awareness of corporal punishment and its effects, provision of access for parents to alternative evidence-based strategies to assist in parenting, and a national parenting survey to monitor outcomes.