The current study is an investigation of early adolescents' perceptions of social support from parents, teachers, classmates, and close friends, and how that support is related to measures of students' adjustment on a range of behavioral indices. Data were collected on a sample of 246 students in Grades 6 through 8 using the Child and Adolescent Social Support Scale (CASSS), and the Parent Rating Scale of the Behavior Assessment System for Children (BASC-PRS). Analyses using the social support subscale scores (Parent, Teacher, Classmate, and Close Friend) replicated past research in finding gender differences on mean levels of perceived social support, with girls perceiving higher levels of classmate and close friend support than boys. In addition, girls reported significantly more support from close friends than any other source, whereas boys reported significantly less support from classmates than any other source. Finally, results demonstrated gender differences in the relationship between social support and several indices of student adjustment, and provided evidence for the importance of considering gender differences in planning future research related to social support. (Contains 6 tables.)