List of high schools in Ontario

English public

• Central Algoma Secondary School, Desbarats
• Chapleau High School, Chapleau
• Elliot Lake Secondary School, Elliot Lake
• Hornepayne High School, Hornepayne
• Korah Collegiate & Vocational School, Sault Ste. Marie
• Michipicoten High School, Wawa
• Missarenda Secondary School, Missanabie
• Prince Charles Secondary School (Sault Ste. Marie), Sault Ste. Marie
• Superior Heights Collegiate and Vocational School, Sault Ste. Marie
• W. C. Eaket Secondary School, Blind River
• White Pines Collegiate & Vocational School, Sault Ste. Marie

French public

• École secondaire Carrefour Supérieur-Nord, Wawa
• École secondaire l'Orée des Bois, Dubreuilville
• Villa Française des Jeunes, Elliott Lake

English Catholic

• Holy Angels Learning Centre, Sault Ste. Marie
• St. Basil Secondary School, Sault Ste. Marie
• St. Mary's College, Sault Ste. Marie

French Catholic

• École secondaire catholique Jeunesse-Nord, Blind River
• École secondaire Notre-Dame-du-Sault, Sault Ste. Marie
• École secondaire Saint-Joseph, Wawa

English public

• Brantford Collegiate Institute and Vocational School, Brantford
• North Park Collegiate and Vocational School, Brantford
• Paris District High School, Paris
• Pauline Johnson Collegiate & Vocational School, Brantford
• Tollgate Technological Skills Centre, Brantford
• Six Nations Polytechnic STEAM Academy, Brantford

English Catholic

• Assumption College School, Brantford
• St. John's College, Brantford

English public

• Bruce Peninsula District School, Lion's Head
• Kincardine & District Secondary School, Kincardine
• Peninsula Shores District School, Wiarton
• Saugeen District Secondary School, Port Elgin
• Walkerton District Community School, Walkerton

English Catholic

• Sacred Heart High School, Walkerton

English public

• Blenheim District High School, Blenheim
• Chatham-Kent Secondary School, Chatham
• Chatham Christian High School

Chatham

• John McGregor Secondary School, Chatham
• Lambton-Kent Composite School, Dresden
• Ridgetown District High School, Ridgetown
• Tilbury District High School, Tilbury
• Wallaceburg District Secondary School, Wallaceburg

English Catholic

• Ursuline College, Chatham

French Catholic

• École secondaire catholique de Pain Court, Pain Court

English public

• École Secondaire Cochrane High School, Cochrane
• Hearst High School, Hearst
• Iroquois Falls Secondary School, Iroquois Falls
• Kapuskasing District High School, Kapuskasing
• Roland Michener Secondary School, South Porcupine
• Timmins High and Vocational School, Timmins
• Northern Lights Secondary School, Moosonee

French public

• École secondaire l'Alliance, Iroquois Falls
• École Publique Renaissance, Timmins

English Catholic

• O'Gorman High School, Timmins

French Catholic

• Centre d'éducation permanente, Kapuskasing
• École catholique Georges-Vanier, Smooth Rock Falls
• École catholique Nouveau-Regard, Cochrane
• École secondaire catholique l'Alliance, Iroquois Falls
• École secondaire catholique Cité des Jeunes, Kapuskasing
• École secondaire catholique de Hearst, Hearst
• École secondaire catholique Thériault, Timmins
• La Clef, Timmins

Private

• Delores D. Echum Composite School, Moose Factory

English public

• Centre Dufferin District High School, Shelburne
• Orangeville District Secondary School, Orangeville
• Westside Secondary School, Orangeville

English public

• Ajax High School, Ajax
• Anderson Collegiate Vocational Institute, Whitby
• Bowmanville High School, Bowmanville
• Brock High School, Cannington
• Cartwright High School, Blackstock
• Clarington Central Secondary School, Bowmanville
• Clarke High School, Newcastle
• Courtice Secondary School, Courtice
• Donald A Wilson Secondary School, Whitby
• Dunbarton High School, Pickering
• Durham Alternative Secondary School, Oshawa
• Eastdale Collegiate and Vocational Institute, Oshawa
• G L Roberts Collegiate and Vocational Institute, Oshawa
• Henry Street High School, Whitby
• J. Clarke Richardson Collegiate, Ajax
• Maxwell Heights Secondary School, Oshawa
• O'Neill Collegiate and Vocational Institute, Oshawa
• Oshawa Central Collegiate Institute, Oshawa
• Pickering High School, Ajax
• Pine Ridge Secondary School, Pickering
• Port Perry High School, Port Perry
• R S McLaughlin Collegiate and Vocational Institute, Oshawa
• Sinclair Secondary School, Whitby
• Uxbridge Secondary School, Uxbridge

English Catholic

• All Saints Catholic Secondary School, Whitby
• Archbishop Denis O'Connor Catholic High School, Ajax
• Father Leo J. Austin Catholic Secondary School, Whitby
• Holy Trinity Secondary School, Courtice
• Monsignor John Pereyma Catholic Secondary School, Oshawa
• Monsignor Paul Dwyer Catholic High School, Oshawa
• Notre Dame Catholic Secondary School, Ajax
• St. Mary Catholic Secondary School, Pickering
• St. Stephen's Secondary School, Bowmanville

French Catholic

• École secondaire catholique Saint-Charles-Garnier, Whitby

Private

Trafalgar Castle School, Whitby

English public

• Arthur Voaden Secondary School, St. Thomas
• Central Elgin Collegiate Institute, St. Thomas
• East Elgin Secondary School, Aylmer
• Parkside Collegiate Institute, St. Thomas
• West Elgin Secondary School - West Lorne

English Catholic

• St. Joseph's Catholic High School, St. Thomas

English public

• Belle River District High School, Belle River
• Century Secondary School, Windsor
• Essex District High School, Essex
• General Amherst High School, Amherstburg
• Harrow District High School, Harrow
• J.L. Forster Secondary School, Windsor (closed)
• Kennedy Collegiate Institute, Windsor
• Kingsville District High School, Kingsville
• Leamington District Secondary School, Leamington
• Riverside Secondary School, Windsor
• Sandwich Secondary School, LaSalle
• Tecumseh Vista Academy Secondary School, Tecumseh
• Vincent Massey Secondary School, Windsor
• W.F. Herman Collegiate Institute, Windsor
• Walkerville Collegiate Institute, Windsor
• Western Secondary School, Amherstburg

French public

• École secondaire Michel-Gratton, Windsor

English Catholic

• Assumption College School, Windsor
• Cardinal Carter Catholic High School, Leamington
• Catholic Central High School, Windsor
• F. J. Brennan Catholic High School, Windsor
• Holy Names High School, Windsor
• Saint Anne Catholic High School, Lakeshore
• St. Joseph's Catholic High School, Windsor
• St. Michael's Alternative High School, Essex and Windsor
• St. Thomas of Villanova Catholic Secondary School, LaSalle

French Catholic

• École secondaire catholique E. J. Lajeunesse, Windsor
• École secondaire catholique l'Essor, Tecumseh

English public

• Bayridge Secondary School, Kingston
• Frontenac Secondary School, Kingston
• Kingston Collegiate and Vocational Institute, Kingston
• La Salle Secondary School, Kingston
• Loyalist Collegiate and Vocational Institute, Kingston
• Queen Elizabeth Collegiate and Vocational Institute, Kingston
• Secondary School of Community Education, Kingston
• Sharbot Lake High School, Sharbot Lake
• Sydenham High School, Sydenham

French public

• École secondaire publique Mille-Îles, Kingston

English Catholic

• Holy Cross Catholic Secondary School, Kingston
• Regiopolis-Notre Dame Catholic Secondary School, Kingston

French Catholic

• École secondaire catholique Marie-Rivier, Kingston

English public

• Georgian Bay Community School, Meaford
• Grey Highlands Secondary School, Flesherton
• John Diefenbaker Secondary School, Hanover
• Owen Sound District Secondary School, Owen Sound

English Catholic

• St. Mary's High School, Owen Sound

French Catholic

• École secondaire catholique Saint-Dominique-Savio, Owen Sound

English public

• Cayuga Secondary School, Cayuga
• Dunnville Secondary School, Dunnville
• Hagersville Secondary School, Hagersville
• McKinnon Park Secondary School, Caledonia

English public

• Haliburton Highlands Secondary School, Haliburton

English public

• Abbey Park High School, Oakville
• Acton District High School, Acton
• Aldershot High School, Aldershot
• Burlington Central High School, Burlington
• Craig Kielburger Secondary School, Milton
• Dr. Frank J. Hayden Secondary School, Burlington
• Garth Webb Secondary School, Oakville
• Georgetown District High School, Georgetown
• Iroquois Ridge High School, Oakville
• Lester B. Pearson High School, Burlington
• M.M. Robinson High School, Burlington
• Milton District High School, Milton
• Nelson High School, Burlington
• Oakville Trafalgar High School, Oakville
• Robert Bateman High School, Burlington
• T. A. Blakelock High School, Oakville
• White Oaks Secondary School, Oakville

French public

• École secondaire Gaétan Gervais, Oakville

English Catholic

• Assumption Catholic Secondary School, Burlington
• Bishop Paul Francis Reding Catholic Secondary School, Milton
• Christ the King Catholic Secondary School, Georgetown
• Corpus Christi Catholic Secondary School, Burlington
• Holy Trinity Catholic Secondary School, Oakville
• Jean Vanier Catholic Secondary School, Milton
• Notre Dame Catholic Secondary School, Burlington
• St. Ignatius of Loyola Catholic Secondary School, Oakville
• St. Thomas Aquinas Catholic Secondary School, Oakville

French Catholic

• École secondaire catholique Sainte-Trinité, Oakville

English public

• Ancaster High School, Ancaster
• Delta Secondary School, Hamilton
• Dundas Valley Secondary School, Dundas
• Glendale Secondary School, Hamilton
• Mountain Secondary School, Hamilton
• Nora Frances Henderson Secondary School, Hamilton
• Orchard Park Secondary School, Stoney Creek
• Saltfleet District High School, Stoney Creek
• Sherwood Secondary School, Hamilton
• Sir Allan MacNab Secondary School, Hamilton
• Sir John A Macdonald Secondary School, Hamilton
• Sir Winston Churchill Secondary School, Hamilton
• Waterdown District High School, Waterdown
• Westdale Secondary School, Hamilton
• Westmount Secondary School, Hamilton

French public

• École secondaire Georges-P.-Vanier, Hamilton

English Catholic

• Bishop Ryan, Hamilton
• Bishop Tonnos, Ancaster
• Cardinal Newman, Stoney Creek
• Cathedral High School, Hamilton
• Good Shepherd Hamilton, Downtown Hamilton
• St. Jean de Brebeuf Secondary School, Hamilton
• St. Mary Catholic Secondary, Hamilton
• St. Thomas More, Hamilton

French Catholic

• École secondaire Académie catholique Mère-Teresa, Hamilton

English private

• Columbia International College, Westdale
• Hamilton District Christian High School, Ancaster
• Hillfield Strathallan College, West Mountain Hamilton
• Southern Ontario College, Downtown Hamilton

English public

• Bayside Secondary School, Bayside
• Centennial Secondary School, Belleville
• Centre Hastings Secondary School, Madoc
• Moira Secondary School, Belleville
• North Hastings High School, Bancroft
• Quinte Secondary School, Belleville
• Trenton High School, Trenton

French public

• École secondaire publique Marc-Garneau, Trenton

English Catholic/Christian

• Nicholson Catholic College, Belleville
• Quinte Christian High School, Belleville
• St. Paul Catholic Secondary School, Trenton
• St. Theresa Catholic Secondary School, Belleville

First Nations Private

• Ohahase Education Centre, Tyendinaga Mohawk Territory

English public

• Central Huron Secondary School, Clinton
• F.E. Madill Secondary School, Wingham
• Goderich District Collegiate Institute, Goderich
• South Huron District High School, Exeter

English Catholic

• St. Anne's Catholic Secondary School, Clinton^[2]

English public

• Fenelon Falls Secondary School, Fenelon Falls
• I. E. Weldon Secondary School, Lindsay
• Lindsay Collegiate and Vocational Institute, Lindsay

English Catholic

• St. Thomas Aquinas Secondary School, Lindsay

English public

• Beaver Brae Secondary School, Kenora
• Crolancia Secondary School, Pickle Lake
• Dryden High School, Dryden
• Ignace High School, Ignace
• Northern Eagle High School, Ear Falls
• Queen Elizabeth District High School, Sioux Lookout
• Red Lake District High School, Red Lake
• Vezina Secondary School, Attawapiskat

English Catholic

• St. Thomas Aquinas Secondary School, Kenora

English public

• Alexander Mackenzie Secondary School, Sarnia
• Lambton Collegiate and Vocational Institute, Petrolia
• North Lambton Secondary School, Forest
• Northern Collegiate Institute and Vocational School, Sarnia
• St. Clair Secondary School, Sarnia
• Sarnia Collegiate Institute and Technical School, Sarnia

French public

• École secondaire Franco-Jeunesse, Sarnia

English Catholic

• St. Christopher Catholic Secondary School, Sarnia
• St. Patrick Catholic High School, Sarnia

French Catholic

• École secondaire catholique Saint-François-Xavier, Sarnia

English public

• Almonte and District High School, Almonte
• Carleton Place High School, Carleton Place
• Perth and District Collegiate Institute, Perth
• Smiths Falls District Collegiate Institute, Smiths Falls

English Catholic

• Notre Dame Catholic High School, Carleton Place
• St. John Catholic High School, Perth
• St. Luke Catholic High School, Smiths Falls

English public

• Athens District High School, Athens
• Brockville Collegiate Institute, Brockville
• Gananoque Secondary School, Gananoque
• North Grenville District High School, Kemptville
• Rideau District High School, Elgin
• South Grenville District High School, Prescott
• Thousand Islands Secondary School, Brockville

English Catholic

• St. Mary Catholic High School, Brockville
• St. Michael Catholic High School, Kemptville

French Catholic

• Académie catholique Ange Gabriel, Brockville

English public

• Ernestown Secondary School, Odessa
• Napanee District Secondary School, Napanee
• North Addington Education Centre (K-12), Cloyne

English public

• Manitoulin Secondary School, M'Chigeeng

English public

• A.B. Lucas Secondary School, London
• Clarke Road Secondary School, London
• Glencoe District High School - Glencoe
• H.B. Beal Secondary School, London
• London Central Secondary School, London
• London South Collegiate Institute, London
• Lord Dorchester Secondary School - Dorchester
• Medway High School - Arva
• Montcalm Secondary School, London
• North Middlesex District High School - Parkhill
• Oakridge Secondary School, London
• Saunders Secondary School, London
• Sir Frederick Banting Secondary School, London
• Sir George Ross Secondary School, London
• Sir Wilfrid Laurier Secondary School, London
• Strathroy District Collegiate Institute - Strathroy
• Thames Secondary School, London
• Westminster Secondary School, London

French public

• École secondaire Gabriel-Dumont, London

English Catholic

• Catholic Central High School, London
• Holy Cross Catholic Secondary School, Strathroy
• John Paul II Catholic Secondary School, London
• Mother Teresa Catholic Secondary School, London
• Regina Mundi Catholic College, London
• St. Andre Bessette Catholic Secondary School, London
• St. Thomas Aquinas Catholic Secondary School, London
• St. Mary's Catholic High School, Woodstock

French Catholic

• École secondaire catholique Monseigneur-Bruyère, London

English public

• Bracebridge and Muskoka Lakes Secondary School, Bracebridge
• Gravenhurst High School, Gravenhurst
• Huntsville High School, Huntsville

English Catholic

• St. Dominic School, Bracebridge

English public

• Delhi District Secondary School, Delhi
• Port Dover Composite School, Port Dover
• Simcoe Composite School, Simcoe
• Sprucedale Secondary School, Simcoe
• Valley Heights Secondary School, Walsingham
• Waterford District High School, Waterford

English Catholic

• Holy Trinity Catholic High School, Simcoe

English public

• Campbellford District High School, Campbellford
• Cobourg District Collegiate Institute East, Cobourg
• Cobourg District Collegiate Institute West, Cobourg
• East Northumberland Secondary School, Brighton
• Port Hope High School, Port Hope

English Catholic

• St. Mary's Secondary School, Cobourg

English public

• A. N. Myer Secondary School, Niagara Falls
• Beamsville District Secondary School, Beamsville
• DSBN Academy, St. Catharines
• E.L. Crossley Secondary School, Fonthill
• Eastdale Secondary School, Welland
• Eden High School, St. Catharines
• Governor Simcoe Secondary School, St. Catharines
• Greater Fort Erie Secondary School, Fort Erie
• Grimsby District Secondary School, Grimsby
• Laura Secord Secondary School, St. Catharines
• Port Colborne High School, Port Colborne
• St. Catharines Collegiate Secondary School, St. Catharines
• Sir Winston Churchill Secondary School (St. Catharines), St. Catharines
• Stamford Collegiate Secondary School, Niagara Falls
• Thorold Secondary School, Thorold
• Welland Centennial Secondary School, Welland
• Westlane Secondary School, Niagara Falls

French public

• École secondaire Confédération, Welland

English Catholic

• Blessed Trinity Catholic Secondary School, Grimsby
• Denis Morris Catholic High School, St. Catharines
• Holy Cross Catholic Secondary School, St. Catharines
• Lakeshore Catholic High School, Port Colborne
• Notre Dame College School, Welland
• St. Francis Catholic Secondary School, St. Catharines
• St. Michael Catholic High School, Niagara Falls
• St. Paul Catholic High School, Niagara Falls

French Catholic

• École secondaire catholique Jean-Vanier, Welland

English private

• Ridley College, St. Catharines
• Heritage Christian School, Jordan
• Jordan Christian School, Jordan
• Smithville District Christian High School, Smithville
• Eagles Nest Academy, Port Dalhousie

English public

• Chippewa Intermediate & Secondary School, North Bay
• F.J. McElligott Intermediate & Secondary School, Mattawa
• Laurentian Learning Centre, North Bay
• Northern Secondary School, Sturgeon Falls
• West Ferris Intermediate & Secondary School, North Bay
• Widdifield Secondary School, North Bay

French public

• École publique l'Odyssée, North Bay
• École secondaire publique Northern, Sturgeon Falls

English Catholic

• St. Joseph-Scollard Hall Catholic Secondary School, North Bay

French Catholic

• École secondaire catholique Algonquin, North Bay
• École secondaire catholique Élisabeth-Bruyère, Mattawa
• École secondaire catholique Franco-Cité, Sturgeon Falls

English public

• A.Y.Jackson Secondary School
• Adult High School
• Bell High School
• Brookfield High School
• Cairine Wilson Secondary School
• Canterbury High School
• Colonel By Secondary School
• Earl of March Secondary School
• Glebe Collegiate Institute
• Gloucester High School
• Hillcrest High School
• John McCrae Secondary School
• Lisgar Collegiate Institute
• Longfields-Davidson Heights Secondary School
• Merivale High School
• Nepean High School
• Osgoode Township High School
• Ottawa Technical Learning Centre
• Rideau High School
• Ridgemont High School
• Sir Guy Carleton Secondary School
• Sir Robert Borden High School
• Sir Wilfrid Laurier Secondary School
• South Carleton High School
• West Carleton Secondary School
• Woodroffe High School

French public

• École secondaire publique L'Alternative
• École secondaire publique De La Salle
• École secondaire publique Gisèle-Lalonde
• École secondaire publique Louis-Riel
• École secondaire publique Omer-Deslauriers

English Catholic

• All Saints Catholic High School
• Holy Trinity Catholic High School
• Immaculata High School
• Lester B. Pearson Catholic High School
• M. F. McHugh Education Centre
• Mother Teresa High School
• Notre Dame High School
• Sacred Heart High School
• St. Francis Xavier Catholic High School
• St. Joseph High School
• St. Mark Catholic High School
• St. Matthew High School
• St. Nicholas Adult High School
• St. Patrick's High School
• St. Paul High School
• St. Peter High School
• St. Pius X High School

French Catholic

• Centre professionel et technique Minto
• Collège catholique Franco-Ouest
• Collège catholique Samuel-Genest
• École secondaire catholique Béatrice-Desloges
• École secondaire catholique Franco-Cité
• École secondaire catholique Garneau
• École secondaire catholique Pierre-Savard

English public

• Annandale School, Tillsonburg
• College Avenue Secondary School, Woodstock
• Glendale High School, Tillsonburg
• Huron Park Secondary School, Woodstock
• Ingersoll District Collegiate Institute - Ingersoll
• Norwich District High School - Norwich
• Woodstock Collegiate Institute, Woodstock

English Catholic

• St. Mary's Catholic High School, Woodstock

French Catholic

• École secondaire catholique Notre-Dame, Woodstock

English public

• Almaguin Highlands Secondary School, South River
• Parry Sound Intermediate & High School, Parry Sound

English public

• Applewood Heights Secondary School, Mississauga
• Bramalea Secondary School, Brampton
• Brampton Centennial Secondary School, Brampton
• Castlebrooke Secondary School, Brampton
• Cawthra Park Secondary School, Mississauga
• Central Peel Secondary School, Brampton
• Chinguacousy Secondary School, Brampton
• Clarkson Secondary School, Mississauga
• David Suzuki Secondary School, Brampton
• Erindale Secondary School, Mississauga
• Fletcher's Meadow Secondary School, Brampton
• Glenforest Secondary School, Mississauga
• Gordon Graydon Memorial Secondary School, Mississauga
• Harold M. Brathwaite Secondary School, Brampton
• Heart Lake Secondary School, Brampton
• Humberview Secondary School, Caledon
• John Fraser Secondary School, Mississauga
• Judith Nyman Secondary School, Brampton
• Lincoln M. Alexander Secondary School, Mississauga
• Lorne Park Secondary School, Mississauga
• Louise Arbour Secondary School, Brampton
• Mayfield Secondary School, Caledon
• Meadowvale Secondary School, Mississauga
• Mississauga Secondary School, Mississauga
• North Park Secondary School, Brampton
• Port Credit Secondary School, Mississauga
• Rick Hansen Secondary School, Mississauga
• Sandalwood Heights Secondary School, Brampton
• Stephen Lewis Secondary School, Mississauga
• Streetsville Secondary School, Mississauga
• Thomas L. Kennedy Secondary School, Mississauga
• Turner Fenton Secondary School, Brampton
• West Credit Secondary School, Mississauga
• The Woodlands School, Mississauga

English Catholic

• Archbishop Romero Catholic Secondary School, Mississauga
• Ascension of Our Lord Secondary School, Mississauga
• Cardinal Ambrozic Secondary School, Brampton
• Cardinal Leger Secondary School, Brampton
• Father Michael Goetz Secondary School, Mississauga
• Holy Name of Mary Secondary School, Brampton
• Iona Catholic Secondary School, Mississauga
• John Cabot Catholic Secondary School, Mississauga
• Loyola Catholic Secondary School, Mississauga
• Notre Dame Catholic Secondary School, Brampton
• Our Lady of Mount Carmel Secondary School, Mississauga
• Philip Pocock Catholic Secondary School, Mississauga
• Robert F. Hall Catholic Secondary School, Caledon
• St. Aloysius Gonzaga Secondary School, Mississauga
• St. Augustine Catholic Secondary School, Brampton
• St. Edmund Campion Secondary School, Brampton
• St. Francis Xavier Secondary School, Mississauga
• St. Joan of Arc Catholic Secondary School, Mississauga
• St. Joseph's Secondary School, Mississauga
• St. Marcellinus Secondary School, Mississauga
• St. Marguerite d'Youville Secondary School, Brampton
• St. Martin Secondary School, Mississauga
• St. Michael Catholic Secondary School, Bolton
• St. Paul Secondary School, Mississauga
• St. Roch Catholic Secondary School, Brampton
• St. Thomas Aquinas Secondary School, Brampton

French public

• École secondaire Jeunes sans frontières, Brampton

French Catholic

• École secondaire catholique Sainte-Famille, Mississauga

English private

• Bronte College, Mississauga

English public

• Listowel District Secondary School, Listowel
• Mitchell District High School, Mitchell
• St. Marys District Collegiate & Vocational Institute, St. Marys
• Stratford Central Secondary School, Stratford
• Stratford Northwestern Secondary School, Stratford

English Catholic

• St. Michael Catholic Secondary School, Stratford^[3]

English public

• Adam Scott Collegiate and Vocational Institute, Peterborough
• Crestwood Secondary School, Peterborough
• Kenner Collegiate Vocational Institute, Peterborough
• Lakefield District Secondary School, Lakefield
• Norwood District High School, Norwood
• Thomas A. Stewart Secondary School, Peterborough

English Catholic

• Holy Cross Secondary School, Peterborough
• St. Peter's Secondary School, Peterborough

English public

• Rockland District High School, Rockland
• Russell High School, Russell
• Vankleek Hill Collegiate Institute, Vankleek Hill

French public

• École secondaire publique L'Académie de La Seigneurie, Casselman
• École secondaire publique Le Sommet, Hawkesbury

English Catholic

• St. Francis Xavier Catholic High School, Hammond
• St. Thomas Aquinas Catholic High School, Russell

French Catholic

• École secondaire catholique de Casselman, Casselman
• École secondaire catholique de Plantagenet, Plantagenet
• École secondaire catholique Embrun, Embrun
• École secondaire catholique L'Escale, Rockland
• École secondaire catholique régionale de Hawkesbury, Hawkesbury

English public

• Prince Edward Collegiate Institute, Picton

English public

• Atikokan High School, Atikokan
• Fort Frances High School, Fort Frances
• Rainy River High School, Rainy River

English public

• Arnprior District High School, Arnprior
• Fellowes High School, Pembroke
• General Panet High School, Petawawa
• Mackenzie High School, Deep River
• Madawaska Valley District High School, Barry's Bay
• Opeongo High School, Douglas
• Renfrew Collegiate Institute, Renfrew

French public

• École secondaire publique L'Équinoxe, Pembroke

English Catholic

• Bishop Smith Catholic High School, Pembroke
• St. Joseph's Catholic High School, Renfrew

French Catholic

• Centre scolaire catholique Jeanne-Lajoie, Pembroke

English public

• Banting Memorial High School, Alliston
• Barrie North Collegiate Institute, Barrie
• Bear Creek Secondary School, Barrie
• Bradford District High School, Bradford
• Collingwood Collegiate Institute, Collingwood
• Eastview Secondary School, Barrie
• Elmvale District High School, Elmvale
• Innisdale Secondary School, Barrie
• Georgian Bay District Secondary School, Midland (under construction)^[4]
• Nantyr Shores Secondary School, Alcona
• Nottawasaga Pines Secondary School, Angus
• OD/Park Secondary School, Orillia
• Stayner Collegiate Institute, Stayner
• Twin Lakes Secondary School, Orillia

French public

• École secondaire Le Caron, Penetanguishene
• Ecole secondaire Roméo Dallaire, Barrie

English Catholic

• Holy Trinity School, Bradford
• Jean Vanier School, Collingwood
• Patrick Fogarty School, Orillia
• St. Joan of Arc Catholic High School, Barrie
• St. Joseph's High School, Barrie
• St. Peter's School, Barrie
• St. Theresa's School, Midland
• St. Thomas Aquinas School, Tottenham

French Catholic

• École secondaire catholique Nouvelle-Alliance, Barrie

English public

• Charlottenburgh and Lancaster District High School, Williamstown
• Cornwall Collegiate and Vocational School, Cornwall
• Glengarry District High School, Alexandria
• North Dundas District High School, Winchester
• Rothwell-Osnabruck Secondary School, Ingleside
• St. Lawrence High School, Cornwall
• Seaway District High School, Iroquois
• Tagwi Secondary School, Avonmore

French public

• École secondaire publique L'Héritage, Cornwall

English Catholic

• Holy Trinity Catholic Secondary School, Cornwall
• St. Joseph's Catholic Secondary School, Cornwall
• St. Matthew Catholic Learning Centre, Cornwall

French Catholic

• École secondaire catholique La Citadelle, Cornwall
• École secondaire catholique Le Relais, Alexandria

English public

• Chapleau High School, Chapleau
• Chelmsford Valley District Composite School, Chelmsford
• Confederation Secondary School, Val Caron
• Espanola High School, Espanola
• Lasalle Secondary School, Sudbury
• Lively District Secondary School, Walden
• Lo-Ellen Park Secondary School, Sudbury
• Lockerby Composite School, Sudbury
• M W Moore Secondary School, Shining Tree
• Sudbury Secondary School, Sudbury

French public

• École Cap sur l'Avenir, Sudbury
• École secondaire de la Rivière-des-Français, Noëlville
• École secondaire Hanmer, Hanmer
• École secondaire Macdonald-Cartier, Sudbury

English Catholic

• Bishop Alexander Carter Catholic Secondary School, Hanmer
• Marymount Academy, Sudbury
• St. Albert Adult Learning Centre, Sudbury
• St. Benedict Catholic Secondary School, Sudbury
• St. Charles College, Sudbury

French Catholic

• Carrefour Options+, Sudbury
• Collège Notre-Dame, Sudbury
• École secondaire catholique Champlain, Chelmsford
• École secondaire du Sacré-Cœur, Sudbury
• École secondaire catholique Franco-Ouest, Espanola
• École secondaire catholique l'Horizon, Val Caron
• École secondaire catholique Trillium, Chapleau

English public

• Geraldton Composite High School, Geraldton
• Hammarskjold High School, Thunder Bay
• Lake Superior High School, Terrace Bay
• Manitouwadge High School, Manitouwadge
• Marathon High School, Marathon
• Nipigon-Red Rock District High School, Red Rock
• Sir Winston Churchill Collegiate & Vocational Institute, Thunder Bay
• Superior Collegiate and Vocational Institute, Thunder Bay
• Westgate Collegiate & Vocational Institute, Thunder Bay

French public

• École secondaire Château-Jeunesse, Longlac
• École secondaire Cité-Supérieure, Marathon
• École secondaire Manitouwadge, Manitouwadge

English Catholic

• St. Ignatius High School, Thunder Bay
• St. Patrick High School, Thunder Bay

First Nations private

• Migizi Miigwanan Secondary School

French Catholic

• École secondaire catholique de la Vérendrye, Thunder Bay

English public

• Englehart High School, Englehart
• Kirkland Lake District Composite School, Kirkland Lake
• Timiskaming District Secondary School, New Liskeard

French Catholic

• École catholique Jean-Vanier, Kirkland Lake
• École secondaire catholique Sainte-Marie, New Liskeard
• Centre d'éducation des Adultes, New Liskeard

English/French public and Catholic

NOTE: Several public schools were transferred to the Catholic board in the 1980s.

• A. Y. Jackson Secondary School
• Alderwood Collegiate Institute
• Agincourt Collegiate Institute
• Albert Campbell Collegiate Institute
• Alternative Scarborough Education 1
• L'Amoreaux Collegiate Institute
• Avondale Secondary Alternative School
• Bendale Thomson Secondary School
  • Bendale Business and Technical Institute
  • David and Mary Thomson Collegiate Institute
• Birchmount Park Collegiate Institute
• Bishop Allen Academy
• Blessed Cardinal Newman Catholic High School
• Blessed Mother Teresa Catholic Secondary School
• Blessed Pope John Paul II Catholic Secondary School
• Bloor Collegiate Institute
• Brebeuf College School
• Brother Edmund Rice Catholic Secondary School
• C. W. Jefferys Collegiate Institute
• Cardinal Carter Academy for the Arts
• Cedarbrae Collegiate Institute
• Central Commerce Collegiate
• Central Etobicoke High School
• Central Technical School
• Chaminade College School
• City School
• Le Collège français
• Danforth Collegiate and Technical Institute
• Dante Alighieri Academy
• Delphi Secondary Alternative School
• Dr Norman Bethune Collegiate Institute
• Don Mills Collegiate Institute
• Downsview Secondary School
• Drewry Secondary School
• Earl Haig Secondary School
• East York Collegiate Institute
• Eastdale Collegiate Institute
• Eastern Commerce Collegiate Institute
• École secondaire catholique Mgr-de-Charbonnel
• École secondaire Étienne-Brûlé
• Emery Collegiate Institute
• Etobicoke Collegiate Institute
• Etobicoke School of the Arts
• Etobicoke Year-Round Alternative Centre
• Father John Redmond Catholic Secondary School and Regional Arts Centre
• Forest Hill Collegiate Institute
• Francis Libermann Catholic High School
• Frank Oke Secondary School
• George Harvey Collegiate Institute
• George S. Henry Academy
• Georges Vanier Secondary School
• Greenwood Secondary School
• Harbord Collegiate Institute
• Heydon Park Secondary School
• Humbergrove Secondary School
  • Father Henry Carr Catholic Secondary School
  • Marian Academy (Father Henry Carr West)
• Humberside Collegiate Institute
• Inglenook Community High School
• James Cardinal McGuigan Catholic High School
• Jarvis Collegiate Institute
• John Polanyi Collegiate Insititute
• Keiller Mackay Collegiate Institute
  • Don Bosco Catholic Secondary School
• Kingsmill Secondary School
  • Bishop Allen Academy
• Kipling Collegiate Institute
• Lakeshore Collegiate Institute
• Lakeview Secondary School
  • St. Patrick's Catholic Secondary School
• Lawrence Park Collegiate Institute
• Leaside High School
• Lester B. Pearson Collegiate Institute
• Lewis S. Beattie Secondary School
  • École secondaire catholique Monseigneur-de-Charbonnel
• Loretto Abbey Catholic Secondary School
• Loretto College School
• Madonna Catholic Secondary School
• Malvern Collegiate Institute
• Maplewood High School
• Marc Garneau Collegiate Institute
• Marshall McLuhan Catholic Secondary School
• Martingrove Collegiate Institute
• Mary Ward Catholic Secondary School
• Midland Avenue Collegiate Institute
  • Scarborough Centre for Alternative Studies
  • South East Year Round Alternative Centre
• Monarch Park Collegiate
• Monsignor Fraser College
  • Regina Pacis Catholic Secondary School (Monsignor Fraser College Norfinch Campus)
• Monsignor Percy Johnson Catholic Secondary School
• Neil McNeil High School
• Nelson A. Boylen Collegiate Institute
• Newtonbrook Secondary School
• North Albion Collegiate Institute
• North East Year-Round Alternative Centre
• North Toronto Collegiate Institute
• Northern Secondary School
• Northview Heights Secondary School
• Notre Dame High School
• Oakwood Collegiate Institute
• Oasis Alternative Secondary School
• Parkdale Collegiate Institute
• R. H. King Academy
• Richview Collegiate Institute
• Riverdale Collegiate Institute
• Rosedale Heights School of the Arts
• Royal York Collegiate Institute
  • Etobicoke School of the Arts
• Runnymede Collegiate Institute
• St. Basil-the-Great College School
• St. Joseph's College School
• St. Joseph's Morrow Park Catholic Secondary School
• St. Mary's Catholic Secondary School
• St. Michael's Choir School
• SATEC @ W. A. Porter Collegiate Institute
• Scarlett Heights Entrepreneurial Academy
• School of Experiential Education
• School of Life Experience
• SEED School
• Senator O'Connor College School
• Silverthorn Collegiate Institute
• Sir John A. Macdonald Collegiate Institute
• Sir Oliver Mowat Collegiate Institute
• Sir Robert L. Borden Business and Technical Institute
• Sir Sandford Fleming Academy
  • Dante Alighieri Academy (Beatrice Campus)
• Sir Wilfrid Laurier Collegiate Institute
• Sir William Osler High School
• Stephen Leacock Collegiate Institute
• Subway Academy I
• Subway Academy II
• Tabor Park Vocational School (SCAS (Tabor Park Campus))
  • Jean Vanier Catholic Secondary School
• Thistletown Collegiate Institute
• Timothy Eaton Business and Technical Institute
• Ursula Franklin Academy
• Vaughan Road Academy
• Victoria Park Collegiate Institute
• Vincent Massey Collegiate Institute
  • Michael Power/St. Joseph High School
    • Michael Power Catholic High School
    • St. Joseph High School, Islington
• West End Alternative School
• West Hill Collegiate Institute
• West Humber Collegiate Institute
• West Park Secondary School
  • Bishop Marrocco/Thomas Merton Catholic Secondary School
    • Bishop Francis Marrocco Catholic High School
    • Thomas Merton Academy (St. Joseph's Commercial School)
• West Toronto Collegiate
• Western Technical-Commercial School
• Weston Collegiate Institute
• Westview Centennial Secondary School
• Wexford Collegiate School for the Arts
• William Lyon Mackenzie Collegiate Institute
• Winston Churchill Collegiate Institute
• Woburn Collegiate Institute
• Year Round Alternative School
• York Humber High School
  • Archbishop Romero Catholic Secondary School (York Humber, Humber Blvd. Campus)
• York Memorial Collegiate Institute
• York Mills Collegiate Institute

English public

• Bluevale Collegiate Institute, Waterloo
• Cameron Heights Collegiate Institute, Kitchener
• Eastwood Collegiate Institute, Kitchener
• Elmira District Secondary School, Elmira
• Forest Heights Collegiate Institute, Kitchener
• Galt Collegiate Institute and Vocational School, Cambridge
• Glenview Park Secondary School, Cambridge
• Grand River Collegiate Institute, Kitchener
• Huron Heights Secondary School, Kitchener
• Jacob Hespeler Secondary School, Cambridge
• Kitchener-Waterloo Collegiate and Vocational School (KCI), Kitchener
• Preston High School, Cambridge
• Sir John A. Macdonald Secondary School, Waterloo
• Southwood Secondary School, Cambridge
• Waterloo Collegiate Institute, Waterloo
• Waterloo-Oxford District Secondary School, Baden

English Catholic

• Monsignor Doyle Catholic Secondary School, Cambridge
• Resurrection Catholic Secondary School, Kitchener
• St. Benedict Catholic Secondary School, Cambridge
• St. David Catholic Secondary School, Waterloo
• St. Louis Adult & Continuing Education, Cambridge and Kitchener
• St. Mary's High School, Kitchener

French Catholic

• École secondaire Père-René-de-Galinée, Cambridge

Private Schools

• Scholars' Hall University Preparatory School, Kitchener
• St. Jude's Special Education Day School, Kitchener
• St. John's-Kilmarnock School, Breslau

English public

• Centennial Collegiate Vocational Institute, Guelph
• Centre Wellington District High School, Fergus
• College Heights Secondary School, Guelph
• Erin District High School, Erin
• Guelph Collegiate Vocational Institute, Guelph
• John F. Ross Collegiate Vocational Institute, Guelph
• Norwell District Secondary School, Palmerston
• Wellington Heights Secondary School, Mount Forest

English Catholic

• Bishop Macdonell Catholic High School, Guelph
• Our Lady of Lourdes Catholic High School, Guelph
• St. James Catholic High School, Guelph

English public

• ACCESS Georgina District High School, Georgina
• ACCESS Program Jefferson Community Learning Centre, Richmond Hill
• Alexander Mackenzie High School, Richmond Hill
• Aurora High School, Aurora
• Bayview Secondary School, Richmond Hill
• Bill Crothers Secondary School, Markham
• Bur Oak Secondary School, Markham
• Dr. G.W. Williams Secondary School, Aurora
• Dr. John M. Denison Secondary School, Newmarket
• Emily Carr Secondary School, Vaughan
• Huron Heights Secondary School, Newmarket
• Keswick High School, Keswick
• King City Secondary School, King City
• Langstaff Secondary School, Richmond Hill
• Maple High School, Vaughan
• Markham District High School, Markham
• Markville Secondary School, Markham
• Middlefield Collegiate Institute, Markham
• Milliken Mills High School, Markham
• Newmarket High School, Newmarket
• Pierre Elliott Trudeau High School, Markham
• Richmond Green Secondary School, Richmond Hill
• Richmond Hill Adult Community Learning School, Richmond Hill
• Richmond Hill High School, Richmond Hill
• Sir William Mulock Secondary School, Newmarket
• Stephen Lewis Secondary School, Vaughan
• Stouffville District Secondary School, Stouffville
• Sutton District High School, Sutton
• Thornhill Secondary School, Thornhill
• Thornlea Secondary School, Thornhill
• Tommy Douglas Secondary School, Vaughan
• Unionville High School, Markham
• Vaughan Secondary School, Vaughan
• Westmount Collegiate Institute, Vaughan
• Woodbridge College, Vaughan

English Catholic

• Brother André Catholic High School, Markham
• Cardinal Carter Catholic High School, Aurora
• Father Bressani Catholic High School, Woodbridge
• Father Michael McGivney Catholic Academy, Markham
• Holy Cross Catholic Academy, Woodbridge
• Jean Vanier Catholic High School, Richmond Hill
• Our Lady of the Lake Catholic College School, Keswick
• Sacred Heart Catholic High School, Newmarket
• St. Augustine Catholic High School, Markham
• St. Elizabeth Catholic High School, Thornhill
• St. Jean de Brebeuf Catholic High School, Woodbridge
• St. Joan of Arc Catholic High School, Maple
• St. Luke Catholic Learning Centre, Thornhill
• St. Maximillian Kolbe Catholic High School, Aurora
• St. Robert Catholic High School, Thornhill
• St. Theresa of Lisieux Catholic High School, Richmond Hill

French Catholic

• École secondaire catholique Renaissance, Aurora

French public

• École secondaire Norval-Morisseau, Richmond Hill