Purpose: Victimization is a common problem for many children but is exacerbated for children with a developmental language disorder (DLD). However, the severity of communication problems does not explain their victimization rates. In children without DLD, difficulties with emotional competence are a risk factor for victimization and also increase the risk of bullying. In this longitudinal study, we examined the extent to which the level and development of emotional competence (understanding of one's own emotions and levels of anger, sadness, and fear) contributed to the prediction of victimization and bullying in children with and without DLD, over and above the type and severity of communication problems of children with DLD. Method: Clinically referred youngsters (8-16 years old) with (n = 112; 48% girls, 52% boys) and without (n = 233; 58% girls, 42% boys) DLD completed self-reports 3 times over an 18-month period. Parents of children with DLD reported on their children's communication problems. Results: Participants with DLD reported more victimization but comparable levels of bullying behavior compared with peers without DLD. Higher levels of sadness and fear were risk factors for more victimization in both groups. Better understanding of one's own emotions had a larger effect on less victimization in children with DLD, independent of their communication problems. In addition, increased levels of anger and lower levels of understanding of one's own emotions explained more bullying in both groups. Conclusion: Outcomes indicate that secondary difficulties in emotional competence in children with DLD make these children more vulnerable to victimization and warrant specific support and interventions.