The role of schools in preventing violence among teenagers has been highlighted, as has the development of youth-led prevention initiatives. This article explores how young people’s views on violence influence their perceptions of its preventability, drawing on focus group discussions with 14- to 16-year-olds from six schools across the north of England. Young people view violence as a highly individualized phenomenon, and gender norms play an important role in shaping young people’s perceptions of the preventability of violence. The findings presented here suggest that school-based violence prevention must fundamentally address gender norms and expectations to challenge young people’s acceptance and tolerance of violence.