Children with ADHD typically experience significant impairment at home and school, and their relationships with parents, teachers, and peers often are strained. Psychosocial interventions for ADHD generally focus on behavior change in one environment at a time (i.e., either home or school); however, unisystemic interventions generally are not sufficient. The purpose of this article is to describe a family-school intervention for children with ADHD. In addition, program strategies and theoretical bases are discussed.