As many as 1 in 10 US high school students report having been “hit, slapped, or physically hurt on purpose by their boyfriend or girlfriend” in the past year. Research on victims of dating violence has demonstrated that they are at risk for a range of negative consequences including death, injury, suicidal thoughts, substance use, disordered eating, and psychiatric disorders. In this study of nearly 1400 students in Boston, approximately one-fifth reported physical dating violence perpetration in the past month. Of the 256 boys who reported perpetrating at least 1 form of violence, physical dating violence was the least commonly reported form (14%), while 84.4% reported perpetrating peer violence and 49.6% sibling violence. Of the 351 girls who reported perpetrating at least 1 form of violence, 44.1% reported perpetrating physical dating violence, 65.2% peer violence, and 59.8% sibling violence. Investigating and addressing the overlap between dating, peer, and sibling violence has the potential to help reduce these problem behaviors.