- Jaffer, Rahim case. see Plea bargaining—Jaffer, Rahim case
- Jails. see Correctional centres
- Jamaican Canadians
- Jane Street Hub. see Community centres—Jane Street Hub
- Japan
- earthquake, tsunami and nuclear incident (11 March 2011). see also Condolences—Japanese earthquake and tsunami victims (11 March 2011); Radiation—monitoring and safety measures—elevated levels in food and water as result of Fukushima nuclear incident; Tributes—Japanese people after earthquake, tsunami and nuclear incident (11 March 2011)
- economic stagnation
- Japanese automobile manufacturers. see Automobile industry—Japanese manufacturers in Ontario
- Jeanne Sauvé Family Services. see Child protection services—government funding—Jeanne Sauvé Family Services
- Jericho House. see Religious organizations—Jericho House
- Jer's Vision: Canada's Youth Diversity Initiative. see Youth organizations—Jer's Vision: Canada's Youth Diversity Initiative
- Job creation. see Employment creation
- John Deere (Welland). see Manufacturing industry shutdowns—John Deere
- Jones, Holly (abducted child and murder victim). see Fatalities—Jones, Holly (abducted child and murder victim)
- Joseph Brant Memorial Hospital. see Hospital expansion—Joseph Brant Memorial Hospital
- Juries. see Court trials—juries—lack of aboriginal representation
- Justices of the peace
- Justices of the Peace Act, R.S.O. 1990, c. J.4
- amended by Good Government Act, 2011 (Bill 110)
- Chudleigh, 2768
- amended by Good Government Act, 2011 (Bill 110)
- Justices of the Peace Appointments Advisory Committee (JPAAC)
- Bentley, 2704-2705