It is perhaps surprising, given the widespread concern about youth violence, that there has been little or no research into the effect of socioeconomic status on youth aggression. In the process of addressing this gap in the research, this Australian quantitative study of students, parents and teachers from sociolingusitically diverse backgrounds found associations between socioeconomic status and agressiveness in school students, which suggest directions for further research and for policy initiatives that may lead to a reduction in youth violence.