The literature demonstrates that children with Attention Deficit Hyperactivity Disorder (ADHD) often experience peer rejection as a result of their difficulties with interpersonal interactions. The manner in which children with ADHD process social information and the extent to which social difficulties may adversely impact these children has remained unclear. In the first part of the study, the perceptions of social support between boys (ages 7 to 11 years) with and without ADHD were compared. An analysis of variance procedure (ANOVA) was performed and children with ADHD were found to perceive significantly lower levels of social support from their classmates than normal peers at pretreatment. The groups did not differ significantly with regard to perceptions of parent, teacher, and close friend support. In the second part of the study, the role of ADHD parent training and its effectiveness in decreasing problem-behaviors, ameliorating social problems, and enhancing perceptions of social support was examined. Repeated measures MANOVAs revealed a significant rater (mother and teacher) by time (pretreatment and posttreatment) interaction effect for total behavior problems, externalizing behavior problems, internalizing behavior problems, and social problems. On each scale, mothers reported more behavior problems than teachers at pretreatment, but fewer problems than teachers at posttreatment assessment. Main effects were not detected. ANOVAs performed on social support ratings by children with ADHD demonstrated a significant increase in their perceptions of parental support between pretreatment and posttreatment. Children's ratings of teacher, close friend, and classmate support did not differ significantly between pretreatment and posttreatment. The findings suggest that children with ADHD are socially perspicacious and sensitive to subtle changes within their social support systems. The parent training program appeared to help with the amelioration of problem behaviors in the home, but results did not indicate generalization of improvements to the classroom. Implications of the findings were discussed and suggestions were made for providing assistance to children with ADHD.