In the United States, bipolar disorder is an increasingly common diagnosis in children, and these children can present with severe behavior problems and emotionality. Many studies have documented the frequent coexistence of behavior disorders and speech-language disorders. Like other children with behavior disorders, children with bipolar disorder are probably at greater risk for concomitant speech-language difficulties that can further complicate their behavioral presentation. This article reviews the features of the disorder based on current research perspectives as well as the most common coexisting conditions and evidence-based medical and psychological interventions. The goal is to increase awareness of pediatric bipolar disorder as a potential consideration in the behavioral presentation of children who have a coexisting speech-language disorder. Speech-language intervention should be one component of the comprehensive intervention program. A case study highlights the need for collaboration among caregivers and other team members as intervention plans are developed, implemented, and evaluated. (Contains 1 table.)