In this paper we advocate the development of a whole-school approach (WSA) to counteract bullying. The WSA works at different levels of intervention in order to involve all members of the school community. The approach also works across the curriculum to promote the message that conflict can be resolved peacefully, that bullying is unfair and unjust, and that all children have the right to come to school to learn and socialise in harmony and safety. The WSA addresses bullying at three different levels of intervention: working therapeutically with individuals at risk, working within classes and in small groups to foster positive relationships and resolve conflicts, and whole-school interventions that actively promote a positive school ethos and develop school-wide anti-bullying policies. In this paper, we give examples of ways in which schools can work at these different levels. These examples include a sample assembly calendar, an active listening activity, the creation of child-friendly environments, facilitation of partnerships with members of the school community and with parents. At the heart of the WSA is a concern for the emotional development of children and young people. From this standpoint, we also encourage teachers to develop their own interventions based on these principles.