Suicidal behavior is developmentally mediated, but the degree to which interventions for suicidal behaviors have been developmentally tailored has varied widely. Published controlled studies of psychosocial treatment interventions for reducing adolescent suicidal behavior are reviewed, with a particular emphasis on the developmental nuances of these interventions. In addition, developmental considerations important in the treatment of suicidal adolescents are discussed. There are insufficient data available from controlled trials to recommend one intervention over another for the treatment of suicidal youth, but interventions that are sensitive to the multiple developmental contexts have potential for greater effectiveness in reducing adolescent suicidal behavior.