The concept of citizenship in regard to persons with mental illness has gained increasing attention in recent years, but little empirical research has been conducted on this topic. In addition, little research or conceptual writing has been done on the topic of criminal justice in regard to citizenship for people with mental illness, in spite of the high incidence of criminal charges and incarceration among this group. We review our work on an applied theoretical framework of citizenship, including its origins in mental health outreach work to people who are homeless and in a jail diversion program. We then suggest the contribution the framework can make to the intersecting issues of mental illness, its criminalization in the U.S., and the goal of community integration for people with mental illness.