Citizenship is an approach to supporting the social inclusion and participation in society of people with mental illnesses. It is receiving greater attention in community mental health discourse and literature in parallel with increased awareness of social determinants of health and concern over the continued marginalization of persons with mental illness in the United States. In this article, we review the definition and principles of our citizenship framework with attention to social participation and access to resources as well as rights and responsibilities that society confers on its members. We then discuss our citizenship research at both individual and social‐environmental levels, including previous, current, and planned efforts. We also discuss the role of community psychology and psychologists in advancing citizenship and other themes relevant to a citizenship perspective on mental health care and persons with mental illness.