This review presents an overview of the present knowledge of the effectiveness of mindfulness interventions (MI) for patients with ADHD. A search was performed in four databases, and 15 papers were found. In adults, the effect of MI was significant on ADHD symptoms but unclear on other outcomes. For children and adolescents, results were uncertain but point toward improved planning, cognitive flexibility and better interactions in the families. No studies have compared the efficacy of MI to pharmacological treatment. Evidence in the field is still sparse due to small sample sizes and differences in study designs.