Regional Offices
Below is a list of our regional offices. For further contact information, please choose from the options on the right-hand menu (under Contact Us) which include our Board of Directors, Change of Address and Information, and dual dues information.
For website queries, please email webmaster@ona.org.
General queries should be directed to onamail@ona.org. Please include your full name, Union ID number if available and the name of your employer.
Regional Offices
If your call/fax is local to the regional office, you should use the local dialing option where possible.
Toronto Office
85 Grenville Street, Suite 400
Toronto ON, M5S 3A2
Phone: 416-964-8833
Toll-free phone: 1-800-387-5580
Fax: 416-964-8864 Toll-free fax: 1-866-964-8864
Kingston Office
4 Cataraqui Street, Suite 201
Kingston ON K7K 1Z7
Phone: 613-545-1110
Night Line: 613-545-1366
Fax: 613-531-9043
Toll-free fax: 1-866-931-9043
Hamilton Office
2 King Street West, Unit 2R
Dundas, ON L9H 6Z1
Phone: 905-628-0850
Fax: 905-628-2557
Toll-free fax: 1-866-928-3496
London Office
750 Baseline Road East, Suite 204
London, ON N6C 2R5
Phone: 519-438-2153
Fax: 519-433-2050
Toll-free fax: 1-866-933-2050
Orillia Office
210 Memorial Avenue, Unit 126A
Orillia ON L3V 7V1
Phone: 705-327-0404
Fax: 705-327-0511
Toll-free fax: 1-866-927-0511
Ottawa Office
1400 Clyde Avenue, Suite 211
Nepean ON K2G 3J2
Phone: 613-226-3733
Fax: 613-723-0947
Toll-free fax: 1-866-523-0947
Sudbury Office
764 Notre Dame Avenue, Unit 3
Sudbury ON P3A 2T4
Phone: 705-560-2610
Fax: 705-560-1411
Toll-free fax: 1-866-460-1411
Thunder Bay Office
Woodgate Office Centre
1139 Alloy Drive, Suite 200
Thunder Bay ON P7B 6M8
Phone: 807-344-9115
Fax: 807-344-8850
Toll-free fax: 1-866-744-8850
Timmins Office
Canadian Mental Health Association Building
330 Second Avenue, Suite 203
Timmins ON P4N 8A4
Phone: 705-264-2294
Fax: 705-268-4355
Toll-free fax: 1-866-568-4355
Windsor Office
3155 Howard Avenue, Suite 220
Windsor ON N8X 3Y9
Phone: 519-966-6350
Fax: 519-972-0814
Toll-free fax: 1-866-972-0814
Contact
Executive Members
ONA Members
My Union. My Contract. My Workplace.
Sign up for E-news
Keep up-to-date on news, events and more from ONA. Simply type in your email address in the box below.
