This chapter considers the history of interventions against school bullying since the 1980s. It considers several major programs in detail. It then reviews meta‐analyses of program effectiveness. Issues considered are effectiveness at different ages, components of interventions, work with peers, disciplinary methods and restorative approaches, challenges of cyberbullying, the role of parents, the role of teachers and teacher training, set menu versus à la carte approaches, sustainability, and societal context.