The aim of this study was to systematically review the research evidence on the effectiveness of yoga for depression. Five RCTs were located, each of which utilised different forms of yoga interventions and in which the severity of the condition ranged from mild to severe. All trials reported positive findings but methodological details such as method of randomisation, compliance and attrition rates were missing. No adverse effects were reported, with the exception of fatigue and breathlessness in participants in one study.