Ever more doubts are being raised over the ‘transformative potential’ of the Women, Peace and Security (WPS) agenda and whether it brings us closer to realising feminist peace. Underpinning a current of WPS activism and scholarship is a radical conceptualisation of feminist peace rooted in anti-militarism, anti-capitalism, and anti-imperialism. This strand shares many commonalities with abolition feminism, yet the two literatures and movements are rarely put in conversation. While both begin from similar political commitments and analyses of the international system, they propose radically different solutions for bringing about feminist liberation. Building on this observation, we ask: (1) how would abolition feminism explain why the WPS agenda has often failed to make progress towards a radical vision of feminist peace?; and, as a corollary, (2) what does abolition feminism demand of the WPS agenda? First, using the framework of ‘reformist’ and ‘non-reformist reforms’, we argue that many WPS policies are better understood as reformist rather than transformative. Second, we argue that abolitionist thinking suggests deeper critiques of WPS than those often put forward by its anti-militarist critics, based on a broader conceptualisation of militarism. Ultimately, abolition feminism demands non-reformist, anti-carceral solutions that raise challenging questions about pathways towards feminist peace.