A social justice approach is emerging as a central aspect of the work of the mental health professional. In addition, group work has significant potential to further a social justice agenda. This chapter provides an overview of a social justice approach to group counseling. The meaning of social justice is clarified and the historical origins of a social justice approach to group work are presented. Existing theory and research related to group work and social justice are reviewed, and current trends in research with social justice groups are summarized. Finally, barriers to a social justice approach to group counseling are briefly discussed, and implications of a social justice approach to group counseling for counseling training, practice, and research are presented.