List of correctional facilities in Ontario
This is a listing of past and present correctional facilities run by the provincial government in Ontario, Canada. Provincial jails (historically spelled gaols) and detention centres primarily house offenders awaiting trial. Correctional centres house convicted inmates serving sentences of up to two years, less a day. Offenders sentenced to two years or more are moved out of the provincial system to serve their time in federal correctional facilities run by Correctional Services Canada. Complexes are institutions that have both detention and correctional facilities.
Provincial adult (offenders 18 years of age or older) facilities are under the jurisdiction of the province's Ministry of Community Safety and Correctional Services. Youth facilities have at various times been under the same jurisdiction, but currently fall under the Ministry of Children and Youth Services.
Operational correctional facilities
Past jails and correctional facilities