Violence against women domestic abuse and sexual violence (VAWDASV) is a major public health problem, criminal justice and human rights issue, with a range of adverse consequences for health and wellbeing over the life course. In Wales, a key objective of the national VAWDASV strategy is to make early intervention and prevention a priority, in recognition that prevention is vital to breaking the cycle of violence in families and communities. The purpose of this review is to identify effective practice for the prevention of VAWDASV and use the evidence to inform the refresh of the national VAWDASV strategy in Wales in 2021.