Immigrant boys show higher rates of antisocial behaviour. However, results of previous studies showed some contradictory findings in terms of intercultural differences in antisocial behaviour. In our study, we used an intercultural comparison of antisocial behaviour based on two different definitions of migration status (nationality vs. migration background). According to migration background, however not according to nationality, significant but small differences were found only in violent delinquency. A longitudinal mediator model based on the disintegration approach (Anhut & Heitmeyer, 2000) was examined in order to contribute to our understanding of the background of violent delinquency in immigrant boys. The data were from a German panel study conducted in the cities of Dortmund and Nuremberg. The results of the mediator model showed that perceived discrimination and negative parenting affect violent delinquency indirectly through violence attitudes, self-control, and peer delinquency. The findings suggest that preventive measures against violent delinquency should focus on these indirect effects and migrant-specific variables.