List of provincial correctional facilities in Ontario

This is a listing of past and present correctional facilities run by the provincial government in Ontario, Canada.

Youth facilities have at various times been under the same jurisdiction, but currently fall under the Ministry of Children, Community and Social Services.

Correctional centres house sentenced offenders who are serving a period of incarceration of up to two years, less a day.

Treatment centres are specialized facilities treating offenders for sexual misconduct, substance abuse, anger management, and other issues.

[2] As of 2020[update], the Ministry of Children, Community and Social Services directly operates six secure custody facilities.