The chapter addresses violence prevention opportunities related to child maltreatment, intimate partner violence, and community violence. Healthy relationships are an antidote to violence. Social work has a long history of strengthening dyadic, family, and community relationships, and these are valuable for preventing and curtailing violence. This chapter provides a framework for centering relationships at the heart of our national fight against violence, and offers an array of ideas for macro and interpersonal practices that social workers—and their allies—can use to reduce violence. These interventions must also be trauma informed and should empower victims, including policies that improve household resources and access to affordable housing, the broader use of safety assessments in working with couples using violence, and using relationship-strengthening strategies safely, such as counseling, mediation, and restorative practices.