Depression in youth is a recurrent and impairing disorder. Although some treatments have shown modest effects in children and adolescents (e.g., cognitive behavioral therapy -- CBT), there remains a critical need to build upon these therapies in order to reach even more youths with depression. One variable hypothesized to affect children's interpersonal relationships is their level of social cognitive development on abilities particularly relevant to social functioning and CBT (e.g., social perspective taking; theory of mind). The first RCT (R61) will test the efficacy of an intervention aimed at increasing children's social cognitive (SC) abilities.Youth (ages 12-17; N=42) with depression diagnoses or clinical levels of depressive symptoms (CESD > 20) will be randomized to either the social cognitive training enhanced CBT (SCT-CBT) or CBT only. Pre- and post-treatment evaluations will assess the social cognitions. In the second RCT (R33), we will conduct a replication trial with a new sample of 82 youth (ages 12-17) again randomized to SCT-CBT or CBT only. Youth will be evaluated with regard to the SC abilities (i.e., theory of mind), level of depressive symptoms, and social functioning at baseline, post-treatment, and at a 4-month follow-up (R33). Finally, in the R33 we will test if increases in SC abilities partially account for the relation between treatment condition and decreases in depression. If the SCT-CBT intervention significantly improves children's SC abilities and social functioning and decreases depression, then this will provide therapists with a more efficient and personalized treatment of depression in youth,