Intimate partner violence (IPV) is the most common form of violence worldwide and contributes substantially to the global burden of mental health problems. The Lancet Psychiatry The Commission on Intimate Partner Violence and Mental Health met to consider progress in reducing the prevalence of IPV and associated mental health harms, and to establish a roadmap to strengthen responses in services, research and mental health policies. Mental health care is predominantly delivered through primary care worldwide, but the relationship between IPV and serious mental health problems, and how best to address IPV within secondary care, have been neglected of mental health.