A list of some key emergency and crisis phone numbers in Ontario:

- 911 - For any immediate emergency service (police, fire, ambulance)

- 211 - Community and Social Services Helpline

- 310-COPE (310-2673) - 24/7 Crisis Services

- 1-866-531-2600 - Mental Health Helpline

- 1-866-933-2023 - Youthline (for youth/teens in crisis)

- 1-800-469-6199 - Portal Mental Health (24/7 support)

- 1-888-429-8167 - Good2Talk (24/7 postsecondary student helpline)

- 1-866-863-0511 - Telehealth Ontario (24/7 medical advice)

- 416-408-4357 - Gerstein Crisis Centre (Toronto)

- 905-972-8338 - COAST Hamilton Crisis Line

- 1-800-563-0808 - Addiction Services Helpline

- 1-800-366-8288 - Kids Help Phone (24/7 counselling for youth)

- 1-800-799-7233 - Assaulted Women's Helpline

- 1-866-863-0511 - Seniors Safety Line

- 1 866-887-0015 - Victim Support Line

- 211 - Report Child Abuse

- 911 or local police number - Report Domestic Violence

- 1-800-267-6860 - Hope for Wellness Helpline (counselling for Indigenous peoples)

- 1-855-554-HEAL (4325) - Trans Lifeline (peer support for trans people)

- 1-866-315-9444 - LGBT Youthline

- 1 866-925-4419 - Naseeha Youth Helpline (for Muslim youth)

- 1-800-550-4900 - Toronto Distress Centre

- 613-722-6914 - Crisis Line (Ottawa & Eastern Ontario)

- 1-844-437-3247 - Road to Mental Readiness (military/veterans)

- 1-866-531-2600 - ConnexOntario Health Services Information

- 211 - Community Information Centres

- 1-800-668-6868 - Kids Help Phone (text & chat options)

- 1-800-463-5065 - Centre for Addiction and Mental Health

- Find your local Canadian Mental Health Association branch

- Find AA, NA or other local addiction/recovery resources

- Local walk-in clinics and emergency departments

- Family doctor's office or after hours on-call line