Attention deficit hyperactivity disorder (ADHD) is one of the most prevalent neurodevelopmental disorders in children and adolescents (CAA) and its treatment plan includes a multimodal approach. Psychoeducation is a potential therapeutic modality in the multimodal treatment of ADHD. Psychoeducation intervention generally consists of single or multiple sessions providing education to the recipient regarding ADHD with the aim to facilitate an informed, self-responsible management of the disorder and to improve the quality of life of patients and their families. Previous reviews have highlighted the positive effects of parental psychoeducation on ADHD symptoms, behavioral problems and social skills of CAA with ADHD. However, the effects of child only and combined parental and CAA psychoeducation interventions are unclear and under investigated. In the current paper, for the first time, we review, individually, the outcomes of parent only psychoeducation, child only psychoeducation and combined parental and CAA psychoeducation across a range of domains in CAA with ADHD. The findings reveal that including psychoeducation in the treatment of ADHD may improve clinical symptoms, social skills, functioning and family relationships in CAA with ADHD.