» OSSTF District 10 - St. Clair    Members of the Ontario Secondary School Teachers Federation in Lambton and Kent Counties.    http://www.osstfd10.ca/

» OSSTF District 11 Thames Valley    Consists of over 2,000 educational workers in a variety of workplaces within the city of London and the counties of Elgin, Middlesex and Oxford.    http://www.execulink.com/~osstf11/index.htm

» OSSTF District 12 Professional Student Services Personnel    Represents guidance counsellors and other support personnel working for the Toronto District School Board.    http://www.pssp.on.ca/

» OSSTF District 12 Toronto    Serves educational workers employed by the Toronto District School Board.    http://www.osstfdist12.com/

» OSSTF District 13 Durham    Represents secondary school personnel working within the secondary school system in Durham Region. Includes news releases, upcoming events and links.    http://www.district13.on.ca/

» OSSTF District 14 Kawartha Pine Ridge    Educational workers in the Peterborough area.    http://osstfd14.ca/

» OSSTF District 15 Trillium Landlakes    Teachers in Kawartha Lakes, Haliburton and part of Muskoka.    http://home.cogeco.ca/~tlosstf/

» OSSTF District 20 Halton    Represents over 1000 members including both secondary school teachers and approximately 60 P.S.S.P workers.    http://www.skylinc.net/users/osstf20/

» OSSTF District 25 Ottawa-Carelton (Teachers)    Represents local teachers. News and photos of past events are included.    http://www.osstf25.on.ca/

» OSSTF District 26 Upper Canada    Represents approximately 1000 teachers and education workers in Eastern Ontario, an area stretching from Cornwall and Hawkesbury to Gananoque and Perth.    http://www.osstf26.com/

» OSSTF District 29 Hastings-Prince Edward    Represents educational workers in the Hastings-Prince Edward area.    http://www.district29.on.ca/

» OSSTF District 4 TBU    Represents secondary school teachers of the Near North District School Board in matters related to collective bargaining, contract maintenance and professional services.    http://www.nearnorth-osstf.org/

» Ontario Secondary School Teachers Federation - OSSTF    Founded in 1919, has 50,000 members across Ontario. They include public high school teachers, occasional teachers, teaching assistants, and other educational and support workers.    http://www.osstf.on.ca/

» Toronto - Secondary Occasional Teachers for a Democratic Union    Group within OSSTF's District 12 Occasional Teacher's Bargaining Unit advocating democratic reforms within the local.    http://www.geocities.com/otdu2k/index.html