The main objective of this review was to provide a quantitative and methodologically sound evaluation of existing treatments for bereavement and grief reactions in children and adolescents. Two meta-analyses were conducted: 1 on controlled studies and 1 on uncontrolled studies. The 2 meta-analyses were based on a total of 27 treatment studies published before June 2006. Hedges's g and Cohen's d were used as measures of effect size and a random-effects model was applied. Results yielded small to moderate effect sizes. Interventions for symptomatic or impaired participants tended to show larger effect sizes than interventions for bereaved children and adolescents without symptoms. Promising treatment models were music therapy and trauma/grief-focused school based brief psychotherapy.