Objective: The present study examined the distinctions between major depression without dysthymia, dysthymia without major depression, and double depression in child psychiatry inpatients. Method: Sixty-two child inpatients, with current diagnoses of major depression and/or dysthymia, and their mothers were interviewed with the Kiddie Schedule for Affective Disorders and Schizophrenia for School-Age Children-Epidemiologic Version and the Social Adjustment Inventory for Children and Adolescents. Results: Results suggest that the relationship between the three disorders is complex and varies according to the informant and the domain under examination. Externalizing disorders were present more often in the dysthymic group compared to the major depression and double depression groups. On the other hand, the major depression and double depression groups reported higher rates of depressive symptoms. Regarding social functioning, children with major depression appeared least impaired. Child report was found to be more sensitive to distinguishing between depressive syndromes, and parents reported the most depressive symptomatology. Conclusion: It appears that the presence of major depression plays an important role in the expression of depressive symptomatology and comorbidity, whereas chronicity seems to be the determining factor in social functioning.