Evaluation results of a school-based peace education and a community-based intervention to change harmful social norms and practices related to gender and the use of violence in conflict resolution, implemented in Afghanistan with the aim of reducing violence against and between children are presented in this paper. A reduction in both peer violence victimization and perpetration for both boys and girls as well as in youth’s reports of domestic violence against women at the household level were reported. Girls’ school attendance was also significantly higher at endline.