This paper describes four areas where feminist movements have led change through expertise, capacity, and influence to anchor and build a field of activist public health that responds to violence against women and girls (VAWG). It looks at how feminist actors have worked to ground the field of prevention in persistent engagement with ecological frameworks, feminist ethics, and power analysis in order to shape and assess intervention models, research questions, and funding principles in ways that centre accountability to women and girls; to inspire a commitment to centering experimentation and innovation; and to press for the recognition of practitioners as knowledge producers and as experts in programme design (including an active commitment to decolonisation by shifting resources and visibility to Global South research institutions and knowledge producers).