The present study examines the levels and social correlates of bullying in adolescents with Attention-Deficit/Hyperactivity Disorder (ADHD). Sixty-four male and female participants (40 ADHD) and their parents and teachers complete standardized questionnaires. Compared to adolescents without ADHD, adolescents with ADHD are more likely to report experiencing victimization by peers and participating in bullying others. Among adolescents with ADHD, those who had experienced victimization by peers perceive lower levels of social support and have higher levels of parent-reported peer relations problems. Bullying others is not associated with perceptions of social support or parent-reported peer relations problems. Implications for future research and clinical assessment are discussed. (Contains 4 tables.)