Child and adolescent psychiatrists are in a unique position to provide administrative and clinical leadership to public agencies. In mental health, services for children and adolescents in early childhood, school, child welfare, and juvenile justice settings, transition-aged youth programs, workforce development, family and youth leadership programs, and use of Medicaid waivers for home- and community-based service system development are described. In child welfare, collaboration between an academic child psychiatry department and a state child welfare department is described. In developmental disabilities, the role of the child and adolescent psychiatrist administrator is described providing administrative leadership, clinical consultation, quality review, and oversight of health and behavioral health plans for persons with developmental disabilities.