The US juvenile justice system has gone through many changes since its inception in the late 1890s. Even with these changes and more than 100 years of empirical research, there is a paucity of literature published on juvenile delinquents with disabilities. The present article focuses on juvenile delinquents with disabilities, addressing definitional issues, prevalence and incidence data, types of educational and mental health services available, and future directions for research. (Contains 2 notes and 1 table.)