Intimate partner violence (IPV) peaks in youth and young adulthood and is associated with multiple adolescent risk behaviors and negative health outcomes. Targeting youth with prevention messages before they start dating may avert teen dating violence and subsequent adult IPV. This article discusses findings from focus groups with middle school youth to determine behaviors and beliefs regarding dating violence. To develop effective prevention messages, participants were asked questions about characteristics of middle school dating relationships, healthy relationships, relationship norms, unhealthy relationships, emotional abuse, physical abuse, sexual abuse, intervening in violent situations, and trusted sources for information about dating violence. The recommendations for prevention efforts include an emphasis on skill building, tailoring efforts for particular subgroups, and identifying innovative ways of reaching youth.