Objective: Dating violence is an important but understudied public health concern in adolescents. This study sought to examine the lifetime prevalence of serious forms of dating violence in 12- to 17- year-olds, risk and protective factors associated with dating violence, and the relation between dating violence and mental health. Method: A nationally representative sample of adolescents (N = 3,614) completed a telephone-based interview that assessed serious forms of dating violence (i.e., sexual assault, physical assault, and/or drug/alcohol-facilitated rape perpetrated by a girlfriend, boyfriend, or other dating partner).Results:Prevalence of dating violence was 1.6 % (2.7 % of girls, 0.6 % of boys), equating to approximately 400,000 adol...