An important priority of measurement for adolescents’ mental health at the population level has been the development of a priority set of indicators. This has been done through a process that included literature review and consultations with stakeholders bringing together the voices and expertise of over 40 experts in the field of adolescent health, child psychiatry, epidemiology, gender, and youth-focused programming. These indicators are a preliminary list and are in the process of being tested through a rigorous validation process.