Although the direct effects of victimization on internalizing and externalizing symptoms among children have been well documented, not much is known about the buffering effect of humour styles. The aim of this study was to examine the moderating role of humour styles in the relationship between victimization and internalizing/externalizing symptoms among 155 Greek students (10-12 yrs), using an anonymous self-report questionnaire. Victimization was positively correlated to both internalized and externalized symptoms, while boys scored higher on self-defeating and aggressive humour. Finally, moderation analysis revealed that the effect of victimization on internalized symptoms was reduced at higher levels of aggressive humour. These findings provide additional evidence for the effect of different humour styles in the school context. As the beneficial impact of aggressive humour on victims may be short-termed, prevention efforts could help students learn how to avoid malign humour and use benign styles to cope with stressful situations.