The experience of cumulative childhood adversities, such as exposure to domestic violence or abuse by caregivers, has been described as risk factor for poor mental health outcomes in adolescence and adulthood. We performed an investigation of experience of violence in all patients aged 6 to 20 years who had consulted the Department of Child and Adolescent Psychiatry, Medical University of Vienna, as outpatients during the period of one year. We were using the Childhood Trauma Interview (CTI) in order to obtain information on the kind of violence. Seventy-five percent of all patients had reported experiences of violence. These youth were significantly more often involved in acts of school violence, thus a significant correlation between experience of domestic violence and violence at school could be revealed. The results of our study emphasize the need for interventions preventing violence both in domestic and in school environments.