College of Nurses of Ontario mailing address
To mail a letter to the College of Nurses of Ontario — the body that regulates registered nurses, registered practical nurses, and nurse practitioners in Ontario — send it to College of Nurses of Ontario, 101 Davenport Road, Toronto, ON M5R 3P1. The College of Nurses of Ontario is the regulatory body for nursing in Ontario. It registers the province’s nurses, sets practice standards, and reviews complaints and reports about a nurse’s conduct, competence, or fitness to practise. Use this address for complaints and concerns, registration and renewal paperwork, and requests for a certificate of standing. Add your return address and any registration number if you'd like a reply, and confirm the address on CNO's official contact page before anything time-sensitive.
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Mailing address
Verified September 2026College of Nurses of Ontario — correspondence address
College of Nurses of Ontario 101 Davenport Road Toronto ON M5R 3P1
Complaints and concerns, registration and renewal paperwork, requests for a certificate of standing, and general written correspondence. This is the regulator's main office — not a courier depot or a member's practice.
No printer, envelope, or stamp — we print and mail it the next business day.
Sources
Addresses verified September 2026 against official sources. Always confirm on the official site before time-sensitive filings.
Key facts
- This is the College of Nurses of Ontario's published correspondence address, taken from its own contact page.
- College of Nurses of Ontario (CNO) is the statutory regulator for registered nurses, registered practical nurses, and nurse practitioners in Ontario — not a voluntary membership association or union.
- Use it for complaints, registration and renewals, and certificate-of-standing requests — not for parcels or courier-only deliveries.
- Add an attention line (e.g. "Registration" or "Complaints/Investigations") so your letter reaches the right department.
- Include your full name, registration number if you have one, and a return address so they can respond.
- PostPal prints your letter and mails it for you — no printer, envelope, stamps, or post office trip.
How to send your letter
- 1
Decide what your letter is for
CNO handles registration and renewals, complaints and concerns about a registrant, and requests such as a certificate of standing. Note which one applies and add an attention line (e.g. "Attention: Registration" or "Attention: Complaints/Investigations") so it reaches the right department.
- 2
Include the details they need
Give your full name and, if you're a registrant, your registration or membership number. If your letter is about someone else — a complaint, or a reference request — include that person's name and, where you have it, their registration number so the file can be found.
- 3
Address it to the office
First line: College of Nurses of Ontario. Then the street: 101 Davenport Road. Then the city line: Toronto ON M5R 3P1.
- 4
Send it with PostPal
Write or upload your letter to PostPal with the address above prefilled. We print it, add your return address, and mail it for you — no printer, envelope, stamps, or trip to the post office.
Common questions
What does the College of Nurses of Ontario do?
The College of Nurses of Ontario is the regulatory body for nursing in Ontario. It registers the province’s nurses, sets practice standards, and reviews complaints and reports about a nurse’s conduct, competence, or fitness to practise. The address above is its main correspondence office — the right place for registration paperwork, complaints, and requests for a certificate of standing.
What is the College of Nurses of Ontario mailing address?
College of Nurses of Ontario, 101 Davenport Road, Toronto, ON M5R 3P1. It's the regulator's published correspondence address. Confirm it on CNO's official contact page before anything time-sensitive, since regulators occasionally relocate.
Can I file a complaint about registered nurses by mail?
Most regulators accept written complaints by post as well as online. Send your concern to the address above, marked "Attention: Complaints" (some use "Professional Conduct" or "Investigations"), with the registrant's name and, if you have it, their registration number, plus a clear account of what happened. Check CNO's official contact page for any complaint form they want you to use.
Where do I send registration, renewal, or a certificate-of-standing request?
The same office handles registration and renewals and issues certificates of standing (also called a certificate of professional conduct or good standing, often needed to register in another jurisdiction). Mail it to the address above with an attention line for "Registration," and include your registration number and return address so they can reply.
Is this the regulator, not a professional association or union?
Yes — College of Nurses of Ontario (CNO) is the statutory regulator that licenses registered nurses, registered practical nurses, and nurse practitioners in Ontario and protects the public. It's separate from any voluntary membership association or union for the same profession; use this address for regulatory matters like registration, complaints, and standing.
How do I mail the College of Nurses of Ontario a letter without a printer?
Write or upload your letter to PostPal with the address prefilled. We print it, add your return address, and mail it for you — no printer, stamps, or post office trip needed.