Owner: Ontario 211 Services
Contact: lleather@211ontario.ca
Description: Please contact Ontario 211 Services for information about this Geographic system.
Mapped communities that have been assigned to multple External Communities are marked with .
| Area Name | Parent Community | Primary Area Type | Province/State/Country | AIRS Export Type | Mapped Community | Mapped Community Parent |
|---|---|---|---|---|---|---|
| Acton | Halton Hills | Ontario, Canada | Community | Acton | Halton Hills | |
| Addington Highlands | Lennox and Addington | Ontario, Canada | City | Addington Highlands | Lennox and Addington County | |
| Addison | Elizabethtown-Kitley | Ontario, Canada | Community | Addison | Elizabethtown-Kitley | |
| Adelaide-Metcalfe | Middlesex | Ontario, Canada | City | Adelaide Metcalfe | Middlesex County | |
| Adjala-Tosorontio | Simcoe | Ontario, Canada | City | Adjala-Tosorontio | South Simcoe | |
| Admaston/Bromley | Renfrew | Ontario, Canada | City | Admaston/Bromley | Renfrew County | |
| Ajax | Durham County | Ontario, Canada | City | Ajax | Durham Region | |
| Akwesasne First Nation | Stormont, Dundas and Glengarry County | Ontario, Canada | City | Akwesasne | Stormont, Dundas and Glengarry United Counties | |
| Alban | French River | Ontario, Canada | Community | Alban | Sudbury District | |
| Alberton | Rainy River | Ontario, Canada | City | Alberton | Rainy River District | |
| Alcona | Innisfil | Ontario, Canada | Community | Alcona | Innisfil | |
| Alexandria | North Glengarry | Ontario, Canada | Community | Alexandria | North Glengarry | |
| Alfred | Alfred and Plantagenet | Ontario, Canada | Community | Alfred | Alfred and Plantagenet | |
| Alfred and Plantagenet | Prescott and Russell County | Ontario, Canada | City | Alfred and Plantagenet | Prescott and Russell United Counties | |
| Algoma County | ON | County | Ontario, Canada | County | Algoma District | Northeastern Ontario |
| Algoma Mills | The North Shore (Township) | Ontario, Canada | Community | Algoma Mills | Algoma District | |
| Algoma, Unorganized, North Part | Algoma County | Ontario, Canada | City | Algoma, Unorganized, North Part | Algoma District | |
| Algonquin | Augusta | Ontario, Canada | Community | Algonquin | Augusta | |
| Algonquin Highlands | Haliburton | Ontario, Canada | City | Algonquin Highlands | Haliburton County | |
| Allanburg | Thorold | Ontario, Canada | Community | Allanburg | Thorold | |
| Alliston | New Tecumseth | Ontario, Canada | Community | Alliston | New Tecumseth | |
| Alnwick/Haldimand | Northumberland | Ontario, Canada | City | Alnwick/Haldimand | Northumberland County | |
| Amaranth | Dufferin County | Ontario, Canada | City | Amaranth | Dufferin County | |
| Ameliasburg | Prince Edward | Ontario, Canada | Community | Ameliasburgh | Prince Edward County | |
| Amherst Island | Loyalist | Ontario, Canada | Community | Amherst Island | Loyalist Township | |
| Amherstburg | Essex | Ontario, Canada | City | Amherstburg | Essex County | |
| Amherstview | Loyalist | Ontario, Canada | Community | Amherstview | Loyalist Township | |
| Ancaster | Hamilton | Ontario, Canada | Community | Ancaster | Hamilton (City of) | |
| Angle Inlet | Northwest Angle 33 First Nation | Ontario, Canada | Community | Angle Inlet | Northwest Angle 33 First Nation | |
| Angling Lake | Wapekeka First Nation | Ontario, Canada | Community | Angling Lake | Kenora District | |
| Angus | Essa | Ontario, Canada | Community | Angus | Essa | |
| Anishinaabeg of Naongashiing/Big Island First Nation | Rainy River | Ontario, Canada | City | Anishinaabeg of Naongashing First Nation | Rainy River District | |
| Ansnorveldt | King | Ontario, Canada | Community | Ansnorveldt | King Township | |
| Apple Hill | North Glengarry | Ontario, Canada | Community | Apple Hill | North Glengarry | |
| Apsley | North Kawartha | Ontario, Canada | Community | Apsley | North Kawartha | |
| Arden | Central Frontenac | Ontario, Canada | Community | Arden | Central Frontenac | |
| Ardoch First Nation | Frontenac County | Ontario, Canada | City | Ardoch First Nation | Frontenac County | |
| Argyle | Kawartha Lakes | Ontario, Canada | Community | Argyle | Kawartha Lakes | |
| Ariss | Guelph/Eramosa | Ontario, Canada | Community | Ariss | Guelph-Eramosa | |
| Arkell | Puslinch | Ontario, Canada | Community | Arkell | Puslinch | |
| Armour | Parry Sound County | Ontario, Canada | City | Armour | Parry Sound District | |
| Armstrong | Timiskaming County | Ontario, Canada | City | Armstrong Township | Timiskaming District | |
| Armstrong Station | Thunder Bay, Unorganized | Ontario, Canada | Community | Armstrong | Thunder Bay District | |
| Aroland | Thunder Bay, Unorganized | Ontario, Canada | Community | Aroland | Thunder Bay District | |
| Aroland First Nation | Thunder Bay | Ontario, Canada | City | Aroland First Nation | Thunder Bay District | |
| Arthur | Wellington North | Ontario, Canada | Community | Arthur | Wellington North | |
| Ashburn | Whitby | Ontario, Canada | Community | Ashburn | Whitby | |
| Ashfield-Colborne-Wawanosh | Huron County | Ontario, Canada | City | Ashfield-Colborne-Wawanosh | Huron County | |
| Assiginack | Manitoulin County | Ontario, Canada | City | Assiginack | Manitoulin District | |
| Astorville | East Ferris | Ontario, Canada | Community | Astorville | East Ferris Township | |
| Asubpeeschoseewagong Netum Anishinabek First Nation | Kenora County | Ontario, Canada | City | Grassy Narrows First Nation | Kenora District | |
| Athens | Leeds and Grenville County | Ontario, Canada | City | Athens | Leeds and Grenville United Counties | |
| Athol | Prince Edward | Ontario, Canada | Community | Athol | Prince Edward County | |
| Atikameksheng Anishnawbek/Whitefish Lake First Nation | Sudbury County | Ontario, Canada | City | Atikameksheng Anishnawbek First Nation | Sudbury District | |
| Atikokan | Rainy River | Ontario, Canada | City | Atikokan | Rainy River District | |
| Attawapiskat | Kenora, Unorganized | Ontario, Canada | Community | Attawapiskat | Kenora District | |
| Attawapiskat First Nation | Kenora County | Ontario, Canada | City | Attawapiskat First Nation | Kenora District | |
| Atwood | North Perth | Ontario, Canada | Community | Atwood | North Perth | |
| Augusta | Leeds and Grenville County | Ontario, Canada | City | Augusta | Leeds and Grenville United Counties | |
| Aurora | York | Ontario, Canada | City | Aurora | York Region | |
| Aylmer | Elgin | Ontario, Canada | City | Aylmer | Elgin County | |
| Ayr | North Dumfries | Ontario, Canada | Community | Ayr | North Dumfries Township | |
| Ayton | West Grey | Ontario, Canada | Community | Ayton | West Grey | |
| Azilda | Greater Sudbury | Ontario, Canada | Community | Azilda | Rayside-Balfour | |
| Baden | Wilmot | Ontario, Canada | Community | Baden | Wilmot Township | |
| Bailieboro | Cavan Monaghan | Ontario, Canada | Community | Bailieboro | Cavan Monaghan | |
| Bainsville | South Glengarry | Ontario, Canada | Community | Bainsville | South Glengarry | |
| Bala | Muskoka Lakes | Ontario, Canada | Community | Bala | Muskoka Lakes Township | |
| Baldwin | Sudbury County | Ontario, Canada | City | Baldwin Township | Sudbury District | |
| Baldwin | Georgina | Ontario, Canada | Community | Baldwin | Georgina | |
| Ballantrae | Whitchurch-Stouffville | Ontario, Canada | Community | Ballantrae | Whitchurch-Stouffville | |
| Ballinafad | Erin | Ontario, Canada | Community | Ballinafad | Erin | |
| Balm Beach | Tiny | Ontario, Canada | Community | Balm Beach | Tiny | |
| Balmertown | Red Lake | Ontario, Canada | Community | Balmertown | Kenora District | |
| Baltimore | Hamilton (Township) | Ontario, Canada | Community | Baltimore | Hamilton Township | |
| Bancroft | Hastings County | Ontario, Canada | City | Bancroft | North Hastings | |
| Barrhaven | Ottawa | Ontario, Canada | Community | Barrhaven | Ottawa (City of) | |
| Barrie | Simcoe | Ontario, Canada | City | Barrie | Simcoe County | |
| Barriefield | Kingston | Ontario, Canada | Community | Barriefield | Kingston | |
| Barry's Bay | Madawaska Valley | Ontario, Canada | Community | Barry's Bay | Renfrew County | |
| Barwick | Chapple | Ontario, Canada | Community | Barwick Township | Rainy River District | |
| Batawa | Quinte West | Ontario, Canada | Community | Batawa | Quinte West | |
| Batchawana Bay | Algoma, Unorganized, North Part | Ontario, Canada | Community | Batchawana Bay | Algoma District | |
| Batchewana First Nation | Algoma County | Ontario, Canada | City | Batchewana First Nation | Algoma District | |
| Bath | Loyalist | Ontario, Canada | Community | Bath | Loyalist Township | |
| Bathurst | Tay Valley | Ontario, Canada | Community | Bathurst | Tay Valley | |
| Battersea | South Frontenac | Ontario, Canada | Community | Battersea | South Frontenac | |
| Baxter | Essa | Ontario, Canada | Community | Baxter | Essa | |
| Bayfield | Bluewater | Ontario, Canada | Community | Bayfield | Bluewater | |
| Bayside | Quinte West | Ontario, Canada | Community | Bayside | Quinte West | |
| Baysville | Lake of Bays | Ontario, Canada | Community | Baysville | Lake of Bays Township | |
| Beachburg | Whitewater Region (Township) | Ontario, Canada | Community | Beachburg | Renfrew County | |
| Beamsville | Lincoln | Ontario, Canada | Community | Beamsville | Lincoln | |
| Bear Island | Temagami First Nation | Ontario, Canada | Community | Bear Island | Joan Township | |
| Beardmore | Greenstone | Ontario, Canada | Community | Beardmore | Greenstone | |
| Bearskin Lake | Kenora, Unorganized | Ontario, Canada | Community | Bearskin Lake | Kenora District | |
| Bearskin Lake First Nation | Kenora County | Ontario, Canada | City | Bearskin Lake First Nation | Kenora District | |
| Beausoleil First Nation | Simcoe | Ontario, Canada | City | Beausoleil First Nation | Simcoe County | |
| Beaverhouse First Nation | Cochrane County | Ontario, Canada | City | Beaverhouse First Nation | Cochrane District | |
| Beaverton | Brock | Ontario, Canada | Community | Beaverton | Brock | |
| Beckwith | Lanark | Ontario, Canada | City | Beckwith | Lanark County | |
| Beeton | New Tecumseth | Ontario, Canada | Community | Beeton | New Tecumseth | |
| Belfountain | Caledon | Ontario, Canada | Community | Belfountain | Caledon (Town of) | |
| Belgrave | North Huron | Ontario, Canada | Community | Belgrave | North Huron | |
| Belle Ewart | Innisfil | Ontario, Canada | Community | Belle Ewart | Innisfil | |
| Belle Vallée | Casey | Ontario, Canada | Community | Belle Vallée | Timiskaming District | |
| Belleville | Hastings County | Ontario, Canada | City | Belleville | South Hastings | |
| Bewdley | Hamilton (Township) | Ontario, Canada | Community | Bewdley | Hamilton Township | |
| Bexley | Kawartha Lakes | Ontario, Canada | Community | Bexley | Kawartha Lakes | |
| Big Trout Lake | Kitchenuhmaykoosib Inninuwug/Big Trout Lake First Nation | Ontario, Canada | Community | Big Trout Lake | Kenora District | |
| Biigtigong Nishnaabeg | Thunder Bay | Ontario, Canada | City | Biigtigong Nishnaabeg | Thunder Bay District | |
| Biinjitiwaabik Zaaging Anishinaabek First Nation | Thunder Bay | Ontario, Canada | City | Biinjitiwaabik Zaaging Anishinaabek First Nation | Thunder Bay District | |
| Billings | Manitoulin County | Ontario, Canada | City | Billings Township | Manitoulin District | |
| Bingwi Neyaashi Anishinaabek/Sand Point First Nation | Thunder Bay | Ontario, Canada | City | Bingwi Neyaashi Anishinaabek First Nation | Thunder Bay District | |
| Black River-Matheson | Cochrane County | Ontario, Canada | City | Black River-Matheson | Cochrane District | |
| Blackstock | Scugog | Ontario, Canada | Community | Blackstock | Scugog | |
| Blind River | Algoma County | Ontario, Canada | City | Blind River | Algoma District | |
| Bloomfield | Prince Edward | Ontario, Canada | Community | Bloomfield | Prince Edward County | |
| Bloomingdale | Woolwich | Ontario, Canada | Community | Bloomingdale | Woolwich Township | |
| Blue Mountains | Grey County | City | City | Blue Mountains | Grey County | |
| Bluevale | Morris-Turnberry | Ontario, Canada | Community | Bluevale | Morris-Turnberry | |
| Blyth | North Huron | Ontario, Canada | Community | Blyth | North Huron | |
| Bobcaygeon | Kawartha Lakes | Ontario, Canada | Community | Bobcaygeon | Kawartha Lakes | |
| Bolsover | Kawartha Lakes | Ontario, Canada | Community | Bolsover | Kawartha Lakes | |
| Bolton | Caledon | Ontario, Canada | Community | Bolton | Caledon (Town of) | |
| Bond Head | Bradford West Gwillimbury | Ontario, Canada | Community | Bond Head | Bradford West Gwillimbury | |
| Bonville | Cornwall | Ontario, Canada | Community | Bonville | Cornwall | |
| Borden CFB | Essa | Ontario, Canada | Community | Borden CFB | South Simcoe | |
| Bornholm | West Perth | Ontario, Canada | Community | Bornholm | West Perth | |
| Boulter | Carlow/Mayo | Ontario, Canada | Community | Boulter | Carlow/Mayo | |
| Bourget | Clarence-Rockland | Ontario, Canada | Community | Bourget | Clarence-Rockland | |
| Bowmanville | Clarington | Ontario, Canada | Community | Bowmanville | Clarington | |
| Bracebridge | Muskoka County | Ontario, Canada | City | Bracebridge | Muskoka District | |
| Bradford West Gwillimbury | Simcoe | Ontario, Canada | City | Bradford West Gwillimbury | South Simcoe | |
| Brampton | Peel County | Ontario, Canada | City | Brampton | Peel Region | |
| Brant | Brant County | Ontario, Canada | City | Brant County | Southwestern Ontario | |
| Brant County | ON | County | Ontario, Canada | County | Brant County | Southwestern Ontario |
| Brantford | Brant County | Ontario, Canada | City | Brantford | Brant County | |
| Brechin | Ramara | Ontario, Canada | Community | Brechin | Ramara | |
| Breslau | Woolwich | Ontario, Canada | Community | Breslau | Woolwich Township | |
| Brethour | Timiskaming County | Ontario, Canada | City | Brethour | Timiskaming District | |
| Bridgenorth | Selwyn | Ontario, Canada | Community | Bridgenorth | Selwyn Township | |
| Brighton | Northumberland | Ontario, Canada | City | Brighton (Municipality of) | Northumberland County | |
| Britt | Parry Sound, Unorganized, Centre Part | Ontario, Canada | Community | Britt | Parry Sound District | |
| Brock | Durham County | Ontario, Canada | City | Brock | Durham Region | |
| Brockton | Bruce | Ontario, Canada | City | Brockton | Bruce County | |
| Brockville | Leeds and Grenville County | Ontario, Canada | City | Brockville | Leeds and Grenville United Counties | |
| Brooke-Alvinston | Lambton | Ontario, Canada | City | Brooke-Alvinston | Lambton County | |
| Brougham | Pickering | Ontario, Canada | Community | Brougham | Pickering | |
| Bruce | ON | Ontario, Canada | County | Bruce County | Southwestern Ontario | |
| Bruce Mines | Algoma County | Ontario, Canada | City | Bruce Mines | Algoma District | |
| Brudenell, Lyndoch and Raglan | Renfrew | Ontario, Canada | City | Brudenell, Lyndoch and Raglan | Renfrew County | |
| Brussels | Huron East | Ontario, Canada | Community | Brussels | Huron East | |
| Buckhorn | Trent Lakes | Ontario, Canada | Community | Buckhorn | Trent Lakes | |
| Burk's Falls | Parry Sound County | Ontario, Canada | City | Burk's Falls | Parry Sound District | |
| Burleigh Falls | North Kawartha | Ontario, Canada | Community | Burleigh Falls | North Kawartha | |
| Burlington | Halton County | Ontario, Canada | City | Burlington | Halton South | |
| Burnt River | Kawartha Lakes | Ontario, Canada | Community | Burnt River | Kawartha Lakes | |
| Burpee and Mills | Manitoulin County | Ontario, Canada | City | Burpee and Mills Township | Manitoulin District | |
| Caesarea | Scugog | Ontario, Canada | Community | Caesarea | Scugog | |
| Caistorville | West Lincoln | Ontario, Canada | Community | Caistorville | West Lincoln | |
| Calabogie | Greater Madawaska | Ontario, Canada | Community | Calabogie | Renfrew County | |
| Caldwell First Nation | Nipissing County | Ontario, Canada | City | Caldwell | Nipissing District | |
| Caledon | Peel County | Ontario, Canada | City | Caledon (Town of) | Peel Region | |
| Caledonia | Haldimand | Ontario, Canada | Community | Caledonia | Haldimand County | |
| Callander | Parry Sound County | Ontario, Canada | City | Callander | Parry Sound District | |
| Calstock | Cochrane, Unorganized, North Part | Ontario, Canada | Community | Calstock | Cochrane District | |
| Calvin | Nipissing County | Ontario, Canada | City | Calvin | Nipissing District | |
| Cambray | Kawartha Lakes | Ontario, Canada | Community | Cambray | Kawartha Lakes | |
| Camden East | Stone Mills | Ontario, Canada | Community | Camden East | Stone Mills | |
| Cameron | Kawartha Lakes | Ontario, Canada | Community | Cameron | Kawartha Lakes | |
| Campbellcroft | Port Hope | Ontario, Canada | Community | Campbellcroft | Port Hope (Municipality of) | |
| Campbellford | Trent Hills | Ontario, Canada | Community | Campbellford | Trent Hills | |
| Canfield | Haldimand | Ontario, Canada | Community | Canfield | Haldimand County | |
| Cannington | Brock | Ontario, Canada | Community | Cannington | Brock | |
| Capreol | Greater Sudbury | Ontario, Canada | Community | Capreol | Greater Sudbury | |
| Caramat | Greenstone | Ontario, Canada | Community | Caramat | Greenstone | |
| Cardiff | Highlands East | Ontario, Canada | Community | Cardiff | Highlands East | |
| Cargill | Brockton | Ontario, Canada | Community | Cargill | Brockton | |
| Carleton Place | Lanark | Ontario, Canada | City | Carleton Place | Lanark County | |
| Carling | Parry Sound County | Ontario, Canada | City | Carling | Parry Sound District | |
| Carlow/Mayo | Hastings County | Ontario, Canada | City | Carlow/Mayo | North Hastings | |
| Cartier | Sudbury, Unorganized, North Part | Ontario, Canada | Community | Cartier Township | Sudbury District | |
| Casey | Timiskaming County | Ontario, Canada | City | Casey Township | Timiskaming District | |
| Casselman | Prescott and Russell County | Ontario, Canada | City | Casselman | Prescott and Russell United Counties | |
| Castleton | Cramahe | Ontario, Canada | Community | Castleton | Cramahe | |
| Cat Lake | Kenora, Unorganized | Ontario, Canada | Community | Cat Lake | Kenora District | |
| Cavan Monaghan | Peterborough County | Ontario, Canada | City | Cavan Monaghan | Peterborough (County of) | |
| Cedar Point | Tiny | Ontario, Canada | Community | Cedar Point | Tiny | |
| Central Elgin | Elgin | Ontario, Canada | City | Central Elgin | Elgin County | |
| Central Frontenac | Frontenac County | Ontario, Canada | City | Central Frontenac | Frontenac County | |
| Central Huron | Huron County | Ontario, Canada | City | Central Huron | Huron County | |
| Centre Hastings | Hastings County | Ontario, Canada | City | Centre Hastings | Central Hastings | |
| Centre Wellington | Wellington | Ontario, Canada | City | Centre Wellington | Wellington County | |
| Centreton | Alnwick/Haldimand | Ontario, Canada | Community | Centreton | Alnwick/Haldimand | |
| Centreville | Stone Mills | Ontario, Canada | Community | Centreville | Stone Mills | |
| Chaffeys Locks | Rideau Lakes | Ontario, Canada | Community | Chaffeys Locks | Rideau Lakes | |
| Chalk River | Laurentian Hills | Ontario, Canada | Community | Chalk River | Renfrew County | |
| Chamberlain | Timiskaming County | Ontario, Canada | City | Chamberlain | Timiskaming District | |
| Chandos Lake | North Kawartha | Ontario, Canada | Community | Chandos | North Kawartha | |
| Chapleau | Sudbury County | Ontario, Canada | City | Chapleau | Sudbury District | |
| Chapleau Ojibway First Nation | Sudbury County | Ontario, Canada | City | Chapleau Ojibway First Nation | Sudbury District | |
| Chapple | Rainy River | Ontario, Canada | City | Chapple | Rainy River District | |
| Chaput Hughes | Kirkland Lake | Ontario, Canada | Community | Chaput Hughes | Kirkland Lake | |
| Charlton | Charlton and Dack | Ontario, Canada | Community | Charlton | Timiskaming District | |
| Charlton and Dack | Timiskaming County | Ontario, Canada | City | Charlton and Dack | Timiskaming District | |
| Chatham-Kent | Chatham-Kent County | Ontario, Canada | City | Chatham-Kent | Southwestern Ontario | |
| Chatham-Kent County | ON | County | Ontario, Canada | County | Chatham-Kent | Southwestern Ontario |
| Chatsworth | Grey County | Ontario, Canada | City | Chatsworth | Grey County | |
| Chatsworth (Village of) | Chatsworth | Ontario, Canada | Community | Chatsworth (Village of) | Chatsworth | |
| Chelmsford | Greater Sudbury | Ontario, Canada | Community | Chelmsford | Sudbury District | |
| Cheltenham | Caledon | Ontario, Canada | Community | Cheltenham | Caledon (Town of) | |
| Cheney | Clarence-Rockland | Ontario, Canada | Community | Cheney | Clarence-Rockland | |
| Cherry Valley | Prince Edward | Ontario, Canada | Community | Cherry Valley | Prince Edward County | |
| Chesley | Arran-Elderslie | Ontario, Canada | Community | Chesley | Arran-Elderslie | |
| Chippewas of Georgina Island First Nation | York | Ontario, Canada | City | Georgina | York Region | |
| Chippewas of Kettle and Stony Point First Nation | Lambton | Ontario, Canada | City | Kettle and Stony Point First Nation | Lambton County | |
| Chippewas of Nawash First Nation | Bruce | Ontario, Canada | City | Chippewas of Nawash First Nation | Bruce County | |
| Chippewas of Rama First Nation | Simcoe | Ontario, Canada | City | Chippewas of Rama First Nation | Orillia and Area | |
| Chippewas of Saugeen First Nation | Bruce | Ontario, Canada | City | Saugeen First Nation | Bruce County | |
| Chippewas of the Thames First Nation | Middlesex | Ontario, Canada | City | Chippewas of the Thames | Middlesex County | |
| Chisholm | Nipissing County | Ontario, Canada | City | Chisholm | Nipissing District | |
| Christian Island | Beausoleil First Nation | Ontario, Canada | Community | Christian Island | Simcoe North | |
| Churchill | Innisfil | Ontario, Canada | Community | Churchill | Innisfil | |
| Chute à Blondeau | East Hawkesbury | Ontario, Canada | Community | Chute à Blondeau | East Hawkesbury | |
| Claremont | Pickering | Ontario, Canada | Community | Claremont | Pickering | |
| Clarence Creek | Clarence-Rockland | Ontario, Canada | Community | Clarence Creek | Clarence-Rockland | |
| Clarington | Durham County | Ontario, Canada | City | Clarington | Durham Region | |
| Clarksburg | The Blue Mountains | Ontario, Canada | Community | Clarksburg | Blue Mountains | |
| Clearview | Simcoe | City | Ontario, Canada | City | Clearview (Simcoe County) | North West Simcoe |
| Clifford | Minto | Ontario, Canada | Community | Clifford | Minto | |
| Clinton | Central Huron | Ontario, Canada | Community | Clinton | Central Huron | |
| Cobalt | Timiskaming County | Ontario, Canada | City | Cobalt | Coleman Township | |
| Cobourg | Northumberland | Ontario, Canada | City | Cobourg | Northumberland County | |
| Cochenour | Red Lake | Ontario, Canada | Community | Cochenour | Dome Township | |
| Cochrane | Cochrane County | Ontario, Canada | City | Cochrane | Cochrane District | |
| Cochrane County | ON | County | Ontario, Canada | County | Cochrane District | Northeastern Ontario |
| Cochrane, Unorganized, North Part | Cochrane County | Ontario, Canada | City | |||
| Cockburn Island | Manitoulin County | Ontario, Canada | City | Cockburn Island Township | Manitoulin District | |
| Colborne | Cramahe | Ontario, Canada | Community | Colborne | Cramahe | |
| Cold Springs | Hamilton (Township) | Ontario, Canada | Community | Cold Springs | Hamilton Township | |
| Coleman | Timiskaming County | Ontario, Canada | City | Coleman Township | Timiskaming District | |
| Collingwood | Simcoe | Ontario, Canada | City | Collingwood | North West Simcoe | |
| Collins | Thunder Bay, Unorganized | Ontario, Canada | Community | Collins | Thunder Bay, Unorganized | |
| Combermere | Madawaska Valley | Ontario, Canada | Community | Combermere | Renfrew County | |
| Conmee | Thunder Bay | Ontario, Canada | City | Conmee | Thunder Bay District | |
| Consecon | Prince Edward | Ontario, Canada | Community | Consecon | Prince Edward County | |
| Constance Lake | Cochrane, Unorganized, North Part | Ontario, Canada | Community | Constance Lake | Cochrane District | |
| Constance Lake First Nation | Cochrane County | Ontario, Canada | City | Constance Lake First Nation | Cochrane District | |
| Copper Cliff | Greater Sudbury | Ontario, Canada | Community | Copper Cliff | Snider Township | |
| Corbeil | East Ferris | Ontario, Canada | Community | Corbeil | East Ferris Township | |
| Corbyville | Belleville | Ontario, Canada | Community | Corbyville | Belleville | |
| Cornwall | Stormont, Dundas and Glengarry County | Ontario, Canada | City | Cornwall | Stormont, Dundas and Glengarry United Counties | |
| Courtice | Clarington | Ontario, Canada | Community | Courtice | Clarington | |
| Courtland | Norfolk | Ontario, Canada | Community | Courtland | Norfolk County | |
| Craighurst | Oro-Medonte | Ontario, Canada | Community | Craighurst | Oro-Medonte | |
| Cramahe | Northumberland | Ontario, Canada | City | Cramahe | Northumberland County | |
| Crediton | South Huron | Ontario, Canada | Community | Crediton | South Huron | |
| Creemore | Clearview | Ontario, Canada | Community | Creemore | Clearview (Simcoe County) | |
| Crosby | Rideau Lakes | Ontario, Canada | Community | Crosby | Rideau Lakes | |
| Crysler | North Stormont | Ontario, Canada | Community | Crysler | North Stormont | |
| Crystal Beach | Fort Erie | Ontario, Canada | Community | Crystal Beach | Fort Erie | |
| Cumberland | Ottawa | Ontario, Canada | Community | Cumberland | Ottawa (City of) | |
| Cumberland Beach | Severn | Ontario, Canada | Community | Cumberland Beach | Severn | |
| Curran | Alfred and Plantagenet | Ontario, Canada | Community | Curran | Alfred and Plantagenet | |
| Curry Hill | South Glengarry | Ontario, Canada | Community | Curry Hill | South Glengarry | |
| Curve Lake | Selwyn | Ontario, Canada | Community | Curve Lake | Selwyn Township | |
| Curve Lake First Nation | Peterborough County | Ontario, Canada | City | Curve Lake First Nation | Selwyn Township | |
| Dalkeith | North Glengarry | Ontario, Canada | Community | Dalkeith | North Glengarry | |
| Dalles | Ochiichagwe'babigo'ining First Nation | Ontario, Canada | Community | Dalles | Dalles First Nation | |
| Dalrymple | Kawartha Lakes | Ontario, Canada | Community | Dalrymple | Kawartha Lakes | |
| Dalton | Kawartha Lakes | Ontario, Canada | Community | Dalton | Kawartha Lakes | |
| Dawn-Euphemia | Lambton | Ontario, Canada | City | Dawn-Euphemia | Lambton County | |
| Dawson | Rainy River | Ontario, Canada | City | Dawson Township | Rainy River District | |
| Deep River | Renfrew | Ontario, Canada | City | Deep River | Renfrew County | |
| Deer Lake | Kenora, Unorganized | Ontario, Canada | Community | Deer Lake | Kenora District | |
| Deer Lake First Nation | Kenora County | Ontario, Canada | City | Deer Lake First Nation | Kenora District | |
| Delhi | Norfolk | Ontario, Canada | Community | Delhi | Norfolk County | |
| Deloro | Marmora and Lake | Ontario, Canada | Community | Deloro | Marmora and Lake | |
| Delta | Rideau Lakes | Ontario, Canada | Community | Delta | Rideau Lakes | |
| Demorestville | Prince Edward | Ontario, Canada | Community | Demorestville | Prince Edward County | |
| Denbigh | Addington Highlands | Ontario, Canada | Community | Denbigh | Addington Highlands | |
| Desbarats | Johnson | Ontario, Canada | Community | Desbarats | Johnson Township | |
| Desboro | Chatsworth | Ontario, Canada | Community | Desboro | Chatsworth | |
| Deseronto | Hastings County | Ontario, Canada | City | Deseronto | South Hastings | |
| Devlin | La Vallée | Ontario, Canada | Community | Devlin | La Vallée Township | |
| Dobie | Gauthier | Ontario, Canada | Community | Dobie | Gauthier | |
| Dog Paw Lake | Northwest Angle 33 First Nation | Ontario, Canada | Community | |||
| Donwood | Douro-Dummer | Ontario, Canada | Community | Donwood | Douro-Dummer | |
| Dorion | Thunder Bay | Ontario, Canada | City | Dorion | Thunder Bay District | |
| Dorking | Perth East | Ontario, Canada | Community | Dorking | Perth East | |
| Dorset | Lake of Bays | Ontario, Canada | Community | Dorset (Muskoka District) | Lake of Bays Township | |
| Douro | Douro-Dummer | Ontario, Canada | Community | Douro | Douro-Dummer | |
| Dowling | Greater Sudbury | Ontario, Canada | Community | Dowling | Sudbury District | |
| Downeyville | Kawartha Lakes | Ontario, Canada | Community | Downeyville | Kawartha Lakes | |
| Drayton | Mapleton | Ontario, Canada | Community | Drayton | Mapleton | |
| Driftwood | Cochrane, Unorganized, North Part | Ontario, Canada | Community | Driftwood | Calder Township | |
| Drummond/North Elmsley | Lanark | Ontario, Canada | City | Drummond/North Elmsley | Lanark County | |
| Dryden | Kenora County | Ontario, Canada | City | Dryden | Kenora District | |
| Dublin | West Perth | Ontario, Canada | Community | Dublin | West Perth | |
| Dubreuilville | Algoma County | Ontario, Canada | City | Dubreuilville | Algoma District | |
| Dufferin County | ON | County | Ontario, Canada | County | Dufferin County | Central Ontario |
| Dunbar | South Dundas | Ontario, Canada | Community | Dunbar | South Dundas | |
| Dunchurch | Whitestone | Ontario, Canada | Community | Dunchurch | Whitestone | |
| Dundalk | Southgate | Ontario, Canada | Community | Dundalk | Southgate | |
| Dundas | Hamilton | Ontario, Canada | Community | Dundas | Hamilton (City of) | |
| Dungannon | Ashfield-Colborne-Wawanosh | Ontario, Canada | Community | Dungannon | Ashfield-Colborne-Wawanosh | |
| Dunnville | Haldimand | Ontario, Canada | Community | Dunnville | Haldimand County | |
| Dunsford | Kawartha Lakes | Ontario, Canada | Community | Dunsford | Kawartha Lakes | |
| Dunvegan | North Glengarry | Ontario, Canada | Community | Dunvegan | North Glengarry | |
| Durham | ON | Ontario, Canada | Durham Region | Greater Toronto Area | ||
| Durham County | ON | County | Ontario, Canada | County | Durham Region | Greater Toronto Area |
| Durham (Town of) | West Grey | Ontario, Canada | Community | Durham (Village of) | West Grey | |
| Dutton/Dunwich | Elgin | Ontario, Canada | City | Dutton-Dunwich | Elgin County | |
| Dwight | Lake of Bays | Ontario, Canada | Community | Dwight | Lake of Bays Township | |
| Dymond | Temiskaming Shores | Ontario, Canada | Community | Dymond | Timiskaming District | |
| Eabamet Lake | Eabametoong First Nation | Ontario, Canada | Community | Eabamet Lake | Kenora District | |
| Eabametoong First Nation | Kenora County | Ontario, Canada | City | Eabametoong First Nation | Kenora District | |
| Eagle Lake | Dysart, Dudley, Harcourt, Guilford, Harburn, Bruton, Havelock, Eyre and Clyde | Ontario, Canada | Community | Eagle Lake | Haliburton County | |
| Eagle Lake First Nation | Kenora County | Ontario, Canada | City | |||
| Ear Falls | Kenora County | Ontario, Canada | City | Ear Falls | Kenora District | |
| Earlton | Armstrong | Ontario, Canada | Community | Earlton | Armstrong Township | |
| East Garafraxa | Dufferin County | Ontario, Canada | City | East Garafraxa | Dufferin County | |
| East Gorham | Thunder Bay, Unorganized | Ontario, Canada | Community | East Gorham | Thunder Bay, Unorganized | |
| East Hawkesbury | Prescott and Russell County | Ontario, Canada | City | East Hawkesbury | Prescott and Russell United Counties | |
| East York | Toronto County | Ontario, Canada | Community | East York | Toronto | |
| East Zorra-Tavistock | Oxford | Ontario, Canada | City | East Zorra-Tavistock | Oxford County | |
| Easton's Corners | Merrickville-Wolford | Ontario, Canada | Community | Easton's Corners | Merrickville-Wolford | |
| Echo Bay | Macdonald, Meredith and Aberdeen Additional | Ontario, Canada | Community | Echo Bay | Algoma District | |
| Edwardsburgh/Cardinal | Leeds and Grenville County | Ontario, Canada | City | Edwardsburgh-Cardinal | Leeds and Grenville United Counties | |
| Eganville | Bonnechere Valley | Ontario, Canada | Community | Eganville | Renfrew County | |
| Elgin | ON | Ontario, Canada | County | Elgin County | Southwestern Ontario | |
| Elginburg | Kingston | Ontario, Canada | Community | Elginburg | Kingston | |
| Elk Lake | James | Ontario, Canada | Community | Elk Lake | James Township | |
| Elliot Lake | Algoma County | Ontario, Canada | City | Elliot Lake | Algoma District | |
| Elmira | Woolwich | Ontario, Canada | Community | Elmira | Woolwich Township | |
| Elmwood | Brockton | Ontario, Canada | Community | Elmwood | Brockton | |
| Elora | Centre Wellington | Ontario, Canada | Community | Elora | Nichol | |
| Elzevir | Tweed | Ontario, Canada | Community | Elzevir | Tweed | |
| Embrun | Russell | Ontario, Canada | Community | Embrun | Russell | |
| Emo | Rainy River | Ontario, Canada | City | Emo | Rainy River District | |
| Emsdale | Perry | Ontario, Canada | Community | Emsdale | Parry Sound District | |
| Enniskillen | Lambton | Ontario, Canada | City | Enniskillen | Lambton County | |
| Ennismore | Selwyn | Ontario, Canada | Community | Ennismore | Selwyn Township | |
| Enterprise | Stone Mills | Ontario, Canada | Community | Enterprise | Stone Mills | |
| Eramosa | Guelph/Eramosa | Ontario, Canada | Community | Eramosa | Guelph-Eramosa | |
| Erin | Wellington | Ontario, Canada | City | Erin | Wellington County | |
| Erin (Village) | Erin | Ontario, Canada | Community | Erin (Village of) | Erin | |
| Erinsville | Stone Mills | Ontario, Canada | Community | Erinsville | Stone Mills | |
| Espanola | Sudbury County | Ontario, Canada | City | Espanola | Sudbury District | |
| Essa | Simcoe | Ontario, Canada | City | Essa | South Simcoe | |
| Essex | Essex | Ontario, Canada | City | Essex | Essex County | |
| Essex | ON | Ontario, Canada | County | Essex County | Southwestern Ontario | |
| Essonville | Highlands East | Ontario, Canada | Community | Essonville | Highlands East | |
| Etobicoke Central | Toronto County | Ontario, Canada | Community | Etobicoke Central | Etobicoke | |
| Etobicoke North | Toronto County | Ontario, Canada | Community | Etobicoke North | Etobicoke | |
| Etobicoke South | Toronto County | Ontario, Canada | Community | Etobicoke South | Etobicoke | |
| Euphrasia | Grey Highlands | Ontario, Canada | Community | Euphrasia | Grey Highlands | |
| Evansville | Burpee and Mills | Ontario, Canada | Community | Evansville | Burpee and Mills Township | |
| Evanturel | Timiskaming County | Ontario, Canada | City | Evanturel | Timiskaming District | |
| Everett | Adjala-Tosorontio | Ontario, Canada | Community | Everett | Adjala-Tosorontio | |
| Exeter | South Huron | Ontario, Canada | Community | Exeter | South Huron | |
| Falconbridge | Greater Sudbury | Ontario, Canada | Community | Falconbridge Township | Sudbury District | |
| Faraday | Hastings County | Ontario, Canada | City | Faraday | North Hastings | |
| Fauquier | Fauquier-Strickland | Ontario, Canada | Community | Fauquier | Shackleton Township | |
| Fauquier-Strickland | Cochrane County | Ontario, Canada | City | Fauquier-Strickland Township | Cochrane District | |
| Fenwick | Pelham | Ontario, Canada | Community | Fenwick | Pelham | |
| Fergus | Centre Wellington | Ontario, Canada | Community | Fergus | Nichol | |
| Feversham | Grey Highlands | Ontario, Canada | Community | Feversham | Osprey | |
| Field | West Nipissing | Ontario, Canada | Community | Field | Nipissing District | |
| Fisherville | Haldimand | Ontario, Canada | Community | Fisherville | Haldimand County | |
| Flamborough | Hamilton | Ontario, Canada | Community | Flamborough | Hamilton (City of) | |
| Flesherton | Grey Highlands | Ontario, Canada | Community | Flesherton | Grey Highlands | |
| Flinton | Addington Highlands | Ontario, Canada | Community | Flinton | Addington Highlands | |
| Flying Post First Nation | Thunder Bay | Ontario, Canada | City | Flying Post First Nation | Thunder Bay District | |
| Foley | Seguin | Ontario, Canada | Community | Foley | Parry Sound District | |
| Fonthill | Pelham | Ontario, Canada | Community | Fonthill | Pelham | |
| Forester's Falls | Whitewater Region (Township) | Ontario, Canada | Community | Forester's Falls | Renfrew County | |
| Fort Albany | Fort Albany First Nation | Ontario, Canada | Community | Fort Albany | Cochrane District | |
| Fort Albany First Nation | Cochrane County | Ontario, Canada | City | Fort Albany First Nation | Cochrane District | |
| Fort Erie | Niagara County | Ontario, Canada | City | Fort Erie | Niagara Region | |
| Fort Frances | Rainy River | Ontario, Canada | City | Fort Frances | Rainy River District | |
| Fort Hope | Eabametoong First Nation | Ontario, Canada | Community | Fort Hope | Kenora District | |
| Fort Severn | Fort Severn First Nation | Ontario, Canada | Community | Fort Severn | Kenora District | |
| Fort Severn First Nation | Kenora County | Ontario, Canada | City | Fort Severn First Nation | Kenora District | |
| Fowlers Corners | Selwyn | Ontario, Canada | Community | Fowlers Corners | Selwyn Township | |
| Foxboro | Belleville | Ontario, Canada | Community | Foxboro | Belleville | |
| Frankford | Quinte West | Ontario, Canada | Community | Frankford | Quinte West | |
| Franktown | Beckwith | Ontario, Canada | Community | Franktown | Beckwith | |
| Frankville | Elizabethtown-Kitley | Ontario, Canada | Community | Frankville | Elizabethtown-Kitley | |
| Fraserville | Otonabee-South Monaghan | Ontario, Canada | Community | Fraserville | Otonabee-South Monaghan | |
| French River | Sudbury County | Ontario, Canada | City | French River | Sudbury | |
| Frenchman's Head | Lac Seul First Nation | Ontario, Canada | Community | Frenchman's Head | Lac Seul First Nation | |
| Front Of Yonge | Leeds and Grenville County | Ontario, Canada | City | Front of Yonge | Leeds and Grenville United Counties | |
| Frontenac County | ON | County | Ontario, Canada | County | Frontenac County | Eastern Ontario |
| Frontenac Islands | Frontenac County | Ontario, Canada | City | Frontenac Islands | Frontenac County | |
| Fullarton | West Perth | Ontario, Canada | Community | Fullarton | West Perth | |
| Garden Hill | Port Hope | Ontario, Canada | Community | Garden Hill | Port Hope (Municipality of) | |
| Garden River | Algoma, Unorganized, North Part | Ontario, Canada | Community | Garden River | Algoma District | |
| Garden Village | Nipissing First Nation | Ontario, Canada | Community | Garden Village | Nipissing District | |
| Garson | Greater Sudbury | Ontario, Canada | Community | Garson | Sudbury District | |
| Gauthier | Timiskaming County | Ontario, Canada | City | Gauthier | Timiskaming District | |
| Georgetown | Halton Hills | Ontario, Canada | Community | Georgetown | Halton Hills | |
| Georgian Bluffs | Grey County | Ontario, Canada | City | Georgian Bluffs | Grey County | |
| Georgina | York | Ontario, Canada | City | Georgina | York Region | |
| Geraldton | Greenstone | Ontario, Canada | Community | Geraldton | Greenstone | |
| Gillies | Thunder Bay | Ontario, Canada | City | Gillies Township | Thunder Bay District | |
| Gilmour | Tudor and Cashel | Ontario, Canada | Community | Gilmour | Tudor and Cashel | |
| Ginoogaming First Nation | Thunder Bay | Ontario, Canada | City | Ginoogaming First Nation | Thunder Bay District | |
| Glen Miller | Quinte West | Ontario, Canada | Community | Glen Miller | Quinte West | |
| Glen Morris | Brant | Ontario, Canada | Community | Glen Morris | Brant County | |
| Glen Robertson | North Glengarry | Ontario, Canada | Community | Glen Robertson | North Glengarry | |
| Glen Walter | South Glengarry | Ontario, Canada | Community | Glen Walter | South Glengarry | |
| Glenburnie | Kingston | Ontario, Canada | Community | Glenburnie | Kingston | |
| Glencairn | Adjala-Tosorontio | Ontario, Canada | Community | Glencairn | Adjala-Tosorontio | |
| Gloucester | Ottawa | Ontario, Canada | Community | Gloucester | Ottawa (City of) | |
| Goderich | Huron County | Ontario, Canada | City | Goderich | Huron County | |
| Godfrey | Central Frontenac | Ontario, Canada | Community | Godfrey | Central Frontenac | |
| Gogama | Sudbury, Unorganized, North Part | Ontario, Canada | Community | Gogama | Sudbury District | |
| Gooderham | Highlands East | Ontario, Canada | Community | Gooderham | Highlands East | |
| Goodwood | Uxbridge | Ontario, Canada | Community | Goodwood | Uxbridge (Township of) | |
| Gore Bay | Manitoulin County | Ontario, Canada | City | Gore Bay | Gordon Township | |
| Gores Landing | Hamilton (Township) | Ontario, Canada | Community | Gores Landing | Hamilton Township | |
| Gormley | Whitchurch-Stouffville | Ontario, Canada | Community | Gormley | Whitchurch-Stouffville | |
| Gorrie | Howick | Ontario, Canada | Community | Gorrie | Howick | |
| Goulais River | Algoma, Unorganized, North Part | Ontario, Canada | Community | Goulais River | Fenwick Township | |
| Gowanstown | North Perth | Ontario, Canada | Community | Gowanstown | North Perth | |
| Gowganda | Timiskaming, Unorganized, West Part | Ontario, Canada | Community | Gowganda | Timiskaming, Unorganized, West Part | |
| Grafton | Alnwick/Haldimand | Ontario, Canada | Community | Grafton | Alnwick/Haldimand | |
| Grand Bend | Lambton Shores | Ontario, Canada | Community | Grand Bend | Lambton Shores | |
| Grand Valley | Dufferin County | Ontario, Canada | City | Grand Valley | Dufferin County | |
| Grassy Narrows | Kenora, Unorganized | Ontario, Canada | Community | Grassy Narrows | Kenora District | |
| Gravenhurst | Muskoka County | Ontario, Canada | City | Gravenhurst | Muskoka District | |
| Greater Madawaska | Renfrew | Ontario, Canada | City | Greater Madawaska | Renfrew County | |
| Greater Napanee | Lennox and Addington | Ontario, Canada | City | Greater Napanee | Lennox and Addington County | |
| Greater Sudbury | Sudbury County | Ontario, Canada | City | Greater Sudbury | Sudbury District | |
| Greenbank | Scugog | Ontario, Canada | Community | Greenbank | Scugog | |
| Greenstone | Thunder Bay | Ontario, Canada | City | Greenstone | Thunder Bay District | |
| Grenfel | Springwater | Ontario, Canada | Community | Grenfel | Springwater | |
| Grey County | ON | County | Ontario, Canada | County | Grey County | Southwestern Ontario |
| Grey Highlands | Grey County | Ontario, Canada | City | Grey Highlands | Grey County | |
| Griffith | Greater Madawaska | Ontario, Canada | Community | Griffith | Renfrew County | |
| Grimsby | Niagara County | Ontario, Canada | City | Grimsby | Niagara Region | |
| Guelph | Wellington | Ontario, Canada | City | Guelph | Wellington County | |
| Guelph/Eramosa | Wellington | Ontario, Canada | City | Guelph-Eramosa | Wellington County | |
| Gull Bay | Gull Bay First Nation | Ontario, Canada | Community | Gull Bay | Thunder Bay District | |
| Gull Bay First Nation | Thunder Bay | Ontario, Canada | City | Kiashke Zaaging Anishinaabek First Nation | Thunder Bay District | |
| Hagersville | Haldimand | Ontario, Canada | Community | Hagersville | Haldimand County | |
| Haileybury | Temiskaming Shores | Ontario, Canada | Community | Haileybury | Timiskaming District | |
| Haldimand | Haldimand County | Ontario, Canada | City | Haldimand County | Southwestern Ontario | |
| Haldimand County | ON | County | Ontario, Canada | County | Haldimand County | Southwestern Ontario |
| Haliburton | ON | Ontario, Canada | County | Haliburton County | Eastern Ontario | |
| Haliburton | Haliburton | Ontario, Canada | City | Haliburton | Haliburton County | |
| Hallebourg | Cochrane, Unorganized, North Part | Ontario, Canada | Community | Hallebourg | Kendall Township | |
| Halton County | ON | County | Ontario, Canada | County | Halton Region | Greater Toronto Area |
| Halton Hills | Halton County | Ontario, Canada | City | Halton Hills | Halton North | |
| Hamilton (Township) | Northumberland | Ontario, Canada | City | Hamilton Township | Northumberland County | |
| Hamilton County | ON | County | Ontario, Canada | County | Hamilton (City of) | Central Ontario |
| Hanmer | Greater Sudbury | Ontario, Canada | Community | Hanmer | Greater Sudbury | |
| Hanover | Grey County | Ontario, Canada | City | Hanover | Grey County | |
| Harcourt | Dysart, Dudley, Harcourt, Guilford, Harburn, Bruton, Havelock, Eyre and Clyde | Ontario, Canada | Community | Harcourt (Haliburton) | Dysart | |
| Harley | Timiskaming County | Ontario, Canada | City | Harley | Timiskaming District | |
| Harris | Timiskaming County | Ontario, Canada | City | Harris | Timiskaming District | |
| Harriston | Minto | Ontario, Canada | Community | Harriston | Minto | |
| Harrow | Essex | Ontario, Canada | Community | Harrow | Essex | |
| Harty | Val Rita-Harty | Ontario, Canada | Community | Harty | Idington Township | |
| Harwood | Hamilton (Township) | Ontario, Canada | Community | Harwood | Hamilton Township | |
| Hastings | Trent Hills | Ontario, Canada | Community | Hastings | Trent Hills | |
| Hastings County | ON | County | Ontario, Canada | County | Hastings County | Eastern Ontario |
| Havelock | Havelock-Belmont-Methuen | Ontario, Canada | Community | Havelock | Havelock-Belmont-Methuen | |
| Hawk Junction | Algoma, Unorganized, North Part | Ontario, Canada | Community | Hawk Junction | Algoma District | |
| Hawkestone | Oro-Medonte | Ontario, Canada | Community | Hawkestone | Oro-Medonte | |
| Hawkesville | Wellesley | Ontario, Canada | Community | Hawkesville | Wellesley Township | |
| Haysville | Wilmot | Ontario, Canada | Community | Haysville | Wilmot Township | |
| Head, Clara and Maria | Renfrew | Ontario, Canada | City | Head, Clara and Maria | Renfrew County | |
| Hearst | Cochrane County | Ontario, Canada | City | Hearst | Cochrane District | |
| Hensall | Bluewater | Ontario, Canada | Community | Hensall | Bluewater | |
| Henvey Inlet First Nation | Parry Sound County | Ontario, Canada | City | Henvey Inlet First Nation | Parry Sound District | |
| Hepworth | South Bruce Peninsula | Ontario, Canada | Community | Hepworth | South Bruce Peninsula | |
| Heron Bay | Marathon | Ontario, Canada | Community | Heron Bay | Pic Township | |
| Hiawatha First Nation | Peterborough County | Ontario, Canada | City | Hiawatha First Nation | Otonabee-South Monaghan | |
| Highlands East | Haliburton | Ontario, Canada | City | Highlands East | Haliburton County | |
| Hilliard | Timiskaming County | Ontario, Canada | City | Hilliard Township | Timiskaming District | |
| Hilliardton | Hilliard | Ontario, Canada | Community | Hilliardton | Hilliard Township | |
| Hillier | Prince Edward | Ontario, Canada | Community | Hillier | Prince Edward County | |
| Hillsburgh | Erin | Ontario, Canada | Community | Hillsburgh | Erin | |
| Hillsdale | Springwater | Ontario, Canada | Community | Hillsdale | Springwater | |
| Hilton | Algoma County | Ontario, Canada | City | Hilton Township | Algoma District | |
| Hilton Beach | Algoma County | Ontario, Canada | City | Hilton Beach | Hilton Township | |
| Holland Landing | East Gwillimbury | Ontario, Canada | Community | Holland Landing | East Gwillimbury | |
| Holtyre | Black River-Matheson | Ontario, Canada | Community | Holtyre | Hislop Township | |
| Holyrood | Huron-Kinloss | Ontario, Canada | Community | Holyrood | Huron-Kinloss | |
| Honey Harbour | Georgian Bay | Ontario, Canada | Community | Honey Harbour | Georgian Bay Township | |
| Hopetown | Lanark Highlands | Ontario, Canada | Community | Hopetown | Lanark Highlands | |
| Hornell Heights | North Bay | Ontario, Canada | Community | Hornell Heights | North Bay | |
| Hornepayne (Township) | Algoma County | Ontario, Canada | City | Hornepayne | Algoma District | |
| Hornepayne First Nation | Algoma County | Ontario, Canada | City | Hornepayne First Nation | Algoma District | |
| Horton | Renfrew | Ontario, Canada | City | Horton | Renfrew County | |
| Howick | Huron County | Ontario, Canada | City | Howick | Huron County | |
| Hudson | Timiskaming County | Ontario, Canada | City | Hudson Township | Timiskaming District | |
| Hudson | Sioux Lookout | Ontario, Canada | Community | Hudson | Kenora District | |
| Humphrey | Seguin | Ontario, Canada | Community | Humphrey | Parry Sound District | |
| Hungerford | Tweed | Ontario, Canada | Community | Hungerford | Tweed | |
| Hunta | Cochrane, Unorganized, North Part | Ontario, Canada | Community | Hunta | Clute Township | |
| Huntsville | Muskoka County | Ontario, Canada | City | Huntsville | Muskoka District | |
| Huron County | ON | County | Ontario, Canada | County | Huron County | Southwestern Ontario |
| Huron East | Huron County | Ontario, Canada | City | Huron East | Huron County | |
| Huron Shores | Algoma County | Ontario, Canada | City | Huron Shores | Algoma District | |
| Hymers | Gillies | Ontario, Canada | Community | Hymers | Gillies Township | |
| Ignace | Kenora County | Ontario, Canada | City | Ignace | Kenora District | |
| Ingersoll | Oxford | Ontario, Canada | City | Ingersoll | Oxford County | |
| Ingleside | South Stormont | Ontario, Canada | Community | Ingleside | South Stormont | |
| Inglewood | Caledon | Ontario, Canada | Community | Inglewood | Caledon (Town of) | |
| Inkerman | North Dundas | Ontario, Canada | Community | Inkerman | North Dundas | |
| Inverary | South Frontenac | Ontario, Canada | Community | Inverary | South Frontenac | |
| Iron Bridge | Huron Shores | Ontario, Canada | Community | Iron Bridge | Gladstone Township | |
| Irondale | Minden Hills | Ontario, Canada | Community | Irondale | Minden Hills | |
| Iroquois | South Dundas | Ontario, Canada | Community | Iroquois | South Dundas | |
| Iroquois Falls | Cochrane County | Ontario, Canada | City | Iroquois Falls | Teefy Township | |
| Iskatewizaagegan 39 First Nation | Kenora County | Ontario, Canada | City | Shoal Lake 39 First Nation | Kenora District | |
| Jackson's Point | Georgina | Ontario, Canada | Community | Jackson's Point | Georgina | |
| James | Timiskaming County | Ontario, Canada | City | James | Timiskaming District | |
| Janetville | Kawartha Lakes | Ontario, Canada | Community | Janetville | Kawartha Lakes | |
| Jarvis | Haldimand | Ontario, Canada | Community | Jarvis | Haldimand County | |
| Jasper | Merrickville-Wolford | Ontario, Canada | Community | Jasper | Merrickville-Wolford | |
| Jellicoe | Greenstone | Ontario, Canada | Community | Jellicoe | Greenstone | |
| Jogues | Cochrane, Unorganized, North Part | Ontario, Canada | Community | Jogues | Way Township | |
| Johnson | Algoma County | Ontario, Canada | City | Johnson Township | Algoma District | |
| Jordan | Lincoln | Ontario, Canada | Community | Jordan | Lincoln | |
| Jordan Station | Lincoln | Ontario, Canada | Community | Jordan Station | Lincoln | |
| Joyceville | Kingston | Ontario, Canada | Community | Joyceville | Kingston | |
| Kagawong | Billings | Ontario, Canada | Community | Kagawong | Billings Township | |
| Kakabeka Falls | Oliver Paipoonge | Ontario, Canada | Community | Kakabeka Falls | Oliver Paipoonge Township | |
| Kaladar | Addington Highlands | Ontario, Canada | Community | Kaladar | Addington Highlands | |
| Kaministiquia | Thunder Bay | Ontario, Canada | Community | Kaministiquia | Thunder Bay | |
| Kanata | Ottawa | Ontario, Canada | Community | Kanata | Ottawa (City of) | |
| Kasabonika | Kenora, Unorganized | Ontario, Canada | Community | Kasabonika | Kenora District | |
| Kashabowie | Thunder Bay, Unorganized | Ontario, Canada | Community | Kashabowie | Thunder Bay District | |
| Kashechewan | Kashechewan First Nation | Ontario, Canada | Community | Kashechewan | Kenora District | |
| Kashechewan First Nation | Kenora County | Ontario, Canada | City | Kashechewan First Nation | Kenora District | |
| Kawartha Lakes | Kawartha Lakes County | Ontario, Canada | City | |||
| Kawartha Lakes County | ON | Ontario, Canada | County | Kawartha Lakes | Eastern Ontario | |
| Kearney | Parry Sound County | Ontario, Canada | City | Kearney | Parry Sound District | |
| Kearns | McGarry | Ontario, Canada | Community | Kearns | McGarry Township | |
| Keene | Otonabee-South Monaghan | Ontario, Canada | Community | Keene | Otonabee-South Monaghan | |
| Keewaywin | Keewaywin First Nation | Ontario, Canada | Community | Keewaywin | Kenora District | |
| Keewaywin First Nation | Kenora County | Ontario, Canada | City | Keewaywin First Nation | Kenora District | |
| Kejick Bay | Lac Seul First Nation | Ontario, Canada | Community | Kejick Bay | Lac Seul First Nation | |
| Kenabeek | Timiskaming, Unorganized, West Part | Ontario, Canada | Community | Kenabeek | Timiskaming District | |
| Kendal | Clarington | Ontario, Canada | Community | Kendal | Clarington | |
| Kenora | Kenora County | Ontario, Canada | City | Kenora | Kenora District | |
| Kenora County | ON | County | Ontario, Canada | County | Kenora District | Northwestern Ontario |
| Kenora, Unorganized | Kenora County | Ontario, Canada | City | Kenora, Unorganized | Kenora District | |
| Kerns | Timiskaming County | Ontario, Canada | City | Kerns | Timiskaming District | |
| Keswick | Georgina | Ontario, Canada | Community | Keswick | Georgina | |
| Kettleby | King | Ontario, Canada | Community | Kettleby | King Township | |
| Killaloe, Hagarty and Richards | Renfrew | Ontario, Canada | City | Killaloe, Hagarty and Richards | Renfrew County | |
| Killarney | Sudbury County | Ontario, Canada | City | Killarney | Killarney Township | |
| Kincardine | Bruce | Ontario, Canada | City | Kincardine | Bruce County | |
| Kincardine (Town of) | Kincardine | Ontario, Canada | Community | Kincardine (Town of) | Kincardine | |
| King | York | Ontario, Canada | City | King Township | York Region | |
| King City | King | Ontario, Canada | Community | King City | King Township | |
| King Kirkland | Timiskaming, Unorganized, West Part | Ontario, Canada | Community | King Kirkland | Lebel Township | |
| Kingfisher Lake | Kingfisher Lake First Nation | Ontario, Canada | Community | Kingfisher Lake | Kenora District | |
| Kingfisher Lake First Nation | Kenora County | Ontario, Canada | City | Kingfisher Lake First Nation | Kenora District | |
| Kingston | Frontenac County | Ontario, Canada | City | Kingston | Frontenac County | |
| Kingsville | Essex | Ontario, Canada | City | Kingsville | Essex County | |
| Kinmount | Kawartha Lakes | Ontario, Canada | Community | Kinmount | Kawartha Lakes | |
| Kirkfield | Kawartha Lakes | Ontario, Canada | Community | Kirkfield | Kawartha Lakes | |
| Kirkland Lake | Timiskaming County | Ontario, Canada | City | Kirkland Lake | Timiskaming District | |
| Kirkton | West Perth | Ontario, Canada | Community | Kirkton | West Perth | |
| Kitchener | Waterloo County | Ontario, Canada | City | Kitchener | Waterloo Region | |
| Kleinburg | Vaughan | Ontario, Canada | Community | Kleinburg | Vaughan | |
| Koocheching First Nation | Kenora County | Ontario, Canada | City | Koocheching First Nation | Kenora District | |
| Kurtzville | North Perth | Ontario, Canada | Community | Kurtzville | North Perth | |
| La Vallée | Rainy River | Ontario, Canada | City | La Vallée Township | Rainy River District | |
| Lac La Croix First Nation | Rainy River | Ontario, Canada | City | Lac La Croix First Nation | Rainy River District | |
| Lafontaine | Tiny | Ontario, Canada | Community | Lafontaine | Tiny | |
| Lake of the Woods | Rainy River | Ontario, Canada | City | Lake of the Woods | Rainy River District | |
| Lakefield | Selwyn | Ontario, Canada | Community | Lakefield | Selwyn Township | |
| L'Amable | Bancroft | Ontario, Canada | Community | L'Amable (Hastings County) | Bancroft | |
| Lambton | ON | Ontario, Canada | County | Lambton County | Southwestern Ontario | |
| Lambton Shores | Lambton | Ontario, Canada | City | Lambton Shores | Lambton County | |
| Lanark | ON | Ontario, Canada | County | Lanark County | Eastern Ontario | |
| Lancaster | South Glengarry | Ontario, Canada | Community | Lancaster | South Glengarry | |
| Langton | Norfolk | Ontario, Canada | Community | Langton | Norfolk County | |
| Lansdowne House | Neskantaga First Nation | Ontario, Canada | Community | Lansdowne House | Kenora District | |
| Laurentian Hills | Renfrew | Ontario, Canada | City | Laurentian Hills | Renfrew County | |
| Laurentian Valley | Renfrew | Ontario, Canada | City | Laurentian Valley | Renfrew County | |
| Leamington | Essex | Ontario, Canada | City | Leamington | Essex County | |
| Leeds and Grenville County | ON | County | Ontario, Canada | County | Leeds and Grenville United Counties | Eastern Ontario |
| Leeds and the Thousand Islands | Leeds and Grenville County | Ontario, Canada | City | Leeds and the Thousand Islands | Leeds and Grenville United Counties | |
| Lefroy | Innisfil | Ontario, Canada | Community | Lefroy | Innisfil | |
| Lennox and Addington | ON | Ontario, Canada | County | Lennox and Addington County | Eastern Ontario | |
| Levack | Greater Sudbury | Ontario, Canada | Community | Levack Township | Sudbury District | |
| Limerick | Hastings County | Ontario, Canada | City | Limerick | Central Hastings | |
| Lincoln | Niagara County | Ontario, Canada | City | Lincoln | Niagara Region | |
| Lindsay | Kawartha Lakes | Ontario, Canada | Community | Lindsay | Kawartha Lakes | |
| Linwood | Wellesley | Ontario, Canada | Community | Linwood | Wellesley Township | |
| Lion's Head | Northern Bruce Peninsula | Ontario, Canada | Community | Lion's Head | Northern Bruce Peninsula | |
| Lisle | Adjala-Tosorontio | Ontario, Canada | Community | Lisle | Adjala-Tosorontio | |
| Listowel | North Perth | Ontario, Canada | Community | Listowel | North Perth | |
| Little Britain | Kawartha Lakes | Ontario, Canada | Community | Little Britain | Kawartha Lakes | |
| Little Current | Northeastern Manitoulin and The Islands | Ontario, Canada | Community | Little Current | Howland Township | |
| Little Rapids | Huron Shores | Ontario, Canada | Community | Little Rapids | West Thessalon Township | |
| Lively | Greater Sudbury | Ontario, Canada | Community | Lively | Waters Township | |
| Locust Hill | Markham | Ontario, Canada | Community | Locust Hill | Markham | |
| Lombardy | Rideau Lakes | Ontario, Canada | Community | Lombardy | Rideau Lakes | |
| Londesborough | Central Huron | Ontario, Canada | Community | Londesborough | Central Huron | |
| London | Middlesex | Ontario, Canada | City | London | Middlesex County | |
| Long Lake 58 First Nation | Thunder Bay | Ontario, Canada | City | Long Lake 58 First Nation | Thunder Bay District | |
| Long Point | Norfolk | Ontario, Canada | Community | Long Point | Norfolk County | |
| Long Sault | South Stormont | Ontario, Canada | Community | Long Sault | South Stormont | |
| Longlac | Greenstone | Ontario, Canada | Community | Longlac | Greenstone | |
| Loretto | Adjala-Tosorontio | Ontario, Canada | Community | Loretto | Adjala-Tosorontio | |
| L'Orignal | Champlain | Ontario, Canada | Community | L'Orignal | Champlain | |
| Loyalist | Lennox and Addington | Ontario, Canada | City | Loyalist Township | Lennox and Addington County | |
| Lucan Biddulph | Middlesex | Ontario, Canada | City | Lucan Biddulph | Middlesex County | |
| Lucknow | Huron-Kinloss | Ontario, Canada | Community | Lucknow | Huron-Kinloss | |
| Lunenburg | South Stormont | Ontario, Canada | Community | Lunenburg | South Stormont | |
| Lyn | Elizabethtown-Kitley | Ontario, Canada | Community | Lyn | Elizabethtown-Kitley | |
| Maberly | Tay Valley | Ontario, Canada | Community | Maberly | Tay Valley | |
| MacDiarmid | Greenstone | Ontario, Canada | Community | MacDiarmid | Greenstone | |
| Macdonald, Meredith and Aberdeen Additional | Algoma County | Ontario, Canada | City | Macdonald, Meredith and Aberdeen Additional (Township) | Algoma District | |
| Machar | Parry Sound County | Ontario, Canada | City | Machar | Parry Sound District | |
| Machin | Kenora County | Ontario, Canada | City | Machin | Kenora District | |
| Mactier | Georgian Bay | Ontario, Canada | Community | Mactier | Georgian Bay Township | |
| Madawaska | South Algonquin | Ontario, Canada | Community | Madawaska | Nipissing District | |
| Madawaska Valley | Renfrew | Ontario, Canada | City | Madawaska Valley | Renfrew County | |
| Madoc | Hastings County | Ontario, Canada | City | Madoc | Central Hastings | |
| Madsen | Red Lake | Ontario, Canada | Community | Madsen | Baird Township | |
| Magnetawan (Municipality of) | Parry Sound County | Ontario, Canada | City | Magnetawan | Parry Sound District | |
| Magnetawan First Nation | Parry Sound County | Ontario, Canada | City | Magnetawan First Nation | Parry Sound District | |
| Maitland | Augusta | Ontario, Canada | Community | Maitland | Augusta | |
| Manhard | Elizabethtown-Kitley | Ontario, Canada | Community | Manhard | Elizabethtown-Kitley | |
| Manitoulin County | ON | County | Ontario, Canada | County | Manitoulin District | Northeastern Ontario |
| Manitoulin, Unorganized, West Part | Manitoulin County | Ontario, Canada | City | Manitoulin, Unorganized, West Part | Manitoulin District | |
| Manitouwadge | Thunder Bay | Ontario, Canada | City | Manitouwadge | Thunder Bay District | |
| Manitowaning | Assiginack | Ontario, Canada | Community | Manitowaning | Assiginack Township | |
| Mapleton | Wellington | Ontario, Canada | City | Mapleton | Wellington County | |
| Marathon | Thunder Bay | Ontario, Canada | City | Marathon | Thunder Bay District | |
| Marionville | Russell | Ontario, Canada | Community | Marionville | Russell | |
| Mariposa | Kawartha Lakes | Ontario, Canada | Community | Mariposa | Kawartha Lakes | |
| Markdale | Grey Highlands | Ontario, Canada | Community | Markdale | Grey Highlands | |
| Markham | York | Ontario, Canada | City | Markham | York Region | |
| Markstay | Markstay-Warren | Ontario, Canada | Community | Markstay | Markstay-Warren | |
| Markstay-Warren | Sudbury County | Ontario, Canada | City | Markstay-Warren | Sudbury District | |
| Marlbank | Tweed | Ontario, Canada | Community | Marlbank | Tweed | |
| Marmora | Marmora and Lake | Ontario, Canada | Community | Marmora | Marmora and Lake | |
| Marmora and Lake | Hastings County | Ontario, Canada | City | Marmora and Lake | Central Hastings | |
| Marten Falls First Nation | Kenora County | Ontario, Canada | City | Marten Falls First Nation | Kenora District | |
| Marten River | Temagami (Municipality of) | Ontario, Canada | Community | Marten River | Nipissing District | |
| Martintown | South Glengarry | Ontario, Canada | Community | Martintown | South Glengarry | |
| Maryhill | Woolwich | Ontario, Canada | Community | Maryhill | Woolwich Township | |
| Marysburgh | Prince Edward | Ontario, Canada | Community | Marysburgh | Prince Edward County | |
| Marysville | Tyendinaga | Ontario, Canada | Community | Marysville (Tyendinaga) | Tyendinaga (Township of) | |
| Massey | Sables-Spanish Rivers | Ontario, Canada | Community | Massey | Sables-Spanish Rivers Township | |
| Matachewan (Township) | Timiskaming County | Ontario, Canada | City | Matachewan | Cairo Township | |
| Matachewan First Nation | Timiskaming County | Ontario, Canada | City | Matachewan First Nation | Timiskaming District | |
| Matheson | Black River-Matheson | Ontario, Canada | Community | Matheson | Bowman Township | |
| Mattagami First Nation | Sudbury County | Ontario, Canada | City | Mattagami First Nation | Sudbury District | |
| Mattawa | Nipissing County | Ontario, Canada | City | Mattawa | Nipissing District | |
| Mattawan | Nipissing County | Ontario, Canada | City | Mattawan | Nipissing District | |
| Mattice | Mattice-Val Côté | Ontario, Canada | Community | Mattice | Eilber Township | |
| Maxville | North Glengarry | Ontario, Canada | Community | Maxville | North Glengarry | |
| Maxwell | Grey Highlands | Ontario, Canada | Community | Maxwell | Osprey | |
| Maynooth | Hastings Highlands | Ontario, Canada | Community | Maynooth | Hastings Highlands | |
| McDowell Lake First Nation | Kenora County | Ontario, Canada | City | McDowell Lake First Nation | Kenora District | |
| McGarry | Timiskaming County | Ontario, Canada | City | McGarry Township | Timiskaming District | |
| M'Chigeeng | M'Chigeeng First Nation | Ontario, Canada | Community | M'Chigeeng | Manitoulin District | |
| Mckellar | Parry Sound County | Ontario, Canada | City | Mckellar | Parry Sound District | |
| McKenzie Island | Red Lake | Ontario, Canada | Community | McKenzie Island | Dome Township | |
| McKerrow | Baldwin | Ontario, Canada | Community | McKerrow | Baldwin Township | |
| McNab/Braeside | Renfrew | Ontario, Canada | City | McNab-Braeside | Renfrew County | |
| Meaford | Grey County | Ontario, Canada | City | Meaford | Grey County | |
| Melancthon | Dufferin County | Ontario, Canada | City | Melancthon | Dufferin County | |
| Meldrum Bay | Manitoulin, Unorganized, West Part | Ontario, Canada | Community | Meldrum Bay | Manitoulin, Unorganized, West Part | |
| Merrickville | Merrickville-Wolford | Ontario, Canada | Community | Merrickville | Merrickville-Wolford | |
| Merrickville-Wolford | Leeds and Grenville County | Ontario, Canada | City | Merrickville-Wolford | Leeds and Grenville United Counties | |
| Middlesex | ON | Ontario, Canada | County | Middlesex County | Southwestern Ontario | |
| Midland | Simcoe | Ontario, Canada | City | Midland | Simcoe North | |
| Migisi Sahgaigan | Eagle Lake First Nation | Ontario, Canada | Community | Migisi Sahgaigan First Nation | Kenora District | |
| Mildmay | South Bruce | Ontario, Canada | Community | Mildmay | South Bruce | |
| Milford | Prince Edward | Ontario, Canada | Community | Milford | Prince Edward County | |
| Milford Bay | Muskoka Lakes | Ontario, Canada | Community | Milford Bay | Muskoka Lakes Township | |
| Millbank | Perth East | Ontario, Canada | Community | Millbank | Perth East | |
| Millbrook | Cavan Monaghan | Ontario, Canada | Community | Millbrook | Cavan Monaghan | |
| Millhaven | Loyalist | Ontario, Canada | Community | Millhaven | Loyalist Township | |
| Milverton | Perth East | Ontario, Canada | Community | Milverton | Perth East | |
| Mindemoya | Central Manitoulin | Ontario, Canada | Community | Mindemoya | Carnarvon Township | |
| Minden | Minden Hills | Ontario, Canada | Community | Minden | Minden Hills | |
| Minden Hills | Haliburton | Ontario, Canada | City | Minden Hills | Haliburton County | |
| Mine Centre | Rainy River, Unorganized | Ontario, Canada | Community | Mine Centre | Fort Frances | |
| Minesing | Springwater | Ontario, Canada | Community | Minesing | Springwater | |
| Minto | Wellington | Ontario, Canada | City | Minto | Wellington County | |
| Mishkosiminiziibiing/Big Grassy First Nation | Rainy River | Ontario, Canada | City | Mishkosiminiziibiing First Nation | Rainy River District | |
| Mississauga First Nation | Algoma County | Ontario, Canada | City | Mississauga First Nation | Algoma District | |
| Mississippi Station | North Frontenac | Ontario, Canada | Community | Mississippi Station | North Frontenac | |
| Mocreebec Council of the Cree Nation | Cochrane County | Ontario, Canada | City | MoCreebec Council of the Cree Nation | Cochrane District | |
| Monetville | French River | Ontario, Canada | Community | Monetville | Martland Township | |
| Monkton | North Perth | Ontario, Canada | Community | Monkton | North Perth | |
| Monteith | Iroquois Falls | Ontario, Canada | Community | Monteith | Cochrane District | |
| Montreal River Harbour | Algoma, Unorganized, North Part | Ontario, Canada | Community | Montreal River Harbour | Algoma District | |
| Moose Creek | North Stormont | Ontario, Canada | Community | Moose Creek | North Stormont | |
| Morewood | North Dundas | Ontario, Canada | Community | Morewood | North Dundas | |
| Morrisburg | South Dundas | Ontario, Canada | Community | Morrisburg | South Dundas | |
| Morson | Anishinaabeg of Naongashiing/Big Island First Nation | Ontario, Canada | Community | Morson | Rainy River District | |
| Mount Albert | East Gwillimbury | Ontario, Canada | Community | Mount Albert | East Gwillimbury | |
| Mount Forest | Wellington North | Ontario, Canada | Community | Mount Forest | Wellington North | |
| Mount Pleasant | Brant | Ontario, Canada | Community | Mount Pleasant | Brant County | |
| Mountain | North Dundas | Ontario, Canada | Community | Mountain | North Dundas | |
| Mountain Grove | Central Frontenac | Ontario, Canada | Community | Mountain Grove | Central Frontenac | |
| Mulmur | Dufferin County | Ontario, Canada | City | Mulmur | Dufferin County | |
| Munsee-Delaware First Nation | Middlesex | Ontario, Canada | City | |||
| Murillo | Oliver Paipoonge | Ontario, Canada | Community | Murillo | Thunder Bay District | |
| Muskoka County | ON | County | Ontario, Canada | County | Muskoka District | Northeastern Ontario |
| Muskoka Lakes | Muskoka County | Ontario, Canada | City | Muskoka Lakes Township | Muskoka District | |
| Muskrat Dam | Muskrat Dam First Nation | Ontario, Canada | Community | Muskrat Dam | Kenora District | |
| Muskrat Dam First Nation | Kenora County | Ontario, Canada | City | Muskrat Dam First Nation | Kenora District | |
| Naicatchewenin First Nation | Rainy River | Ontario, Canada | City | Naicatchewenin First Nation | Rainy River District | |
| Nairn and Hyman | Sudbury County | Ontario, Canada | City | Nairn and Hyman Township | Sudbury District | |
| Nairn Centre | Nairn and Hyman | Ontario, Canada | Community | Nairn Centre | Nairn and Hyman Township | |
| Nakina | Greenstone | Ontario, Canada | Community | Nakina | Greenstone | |
| Namaygoosisagagun First Nation | Thunder Bay | Ontario, Canada | City | Collins | Thunder Bay, Unorganized | |
| Nanticoke | Haldimand | Ontario, Canada | Community | Nanticoke | Haldimand County | |
| Naotkamegwanning/Whitefish Bay First Nation | Kenora County | Ontario, Canada | City | Whitefish Bay First Nation | Kenora District | |
| Naughton | Greater Sudbury | Ontario, Canada | Community | Naughton | Sudbury District | |
| Navan | Ottawa | Ontario, Canada | Community | Navan | Ottawa (City of) | |
| Neebing | Thunder Bay | Ontario, Canada | City | Neebing Township | Thunder Bay District | |
| Neskantaga First Nation | Kenora County | Ontario, Canada | City | Neskantaga First Nation | Kenora District | |
| Nestor Falls | Sioux Narrows-Nestor Falls | Ontario, Canada | Community | Nestor Falls | Godson Township | |
| Neustadt | West Grey | Ontario, Canada | Community | Neustadt | West Grey | |
| New Dublin | Elizabethtown-Kitley | Ontario, Canada | Community | New Dublin | Elizabethtown-Kitley | |
| New Hamburg | Wilmot | Ontario, Canada | Community | New Hamburg | Wilmot Township | |
| New Liskeard | Temiskaming Shores | Ontario, Canada | Community | New Liskeard | Timiskaming District | |
| New Lowell | Clearview | Ontario, Canada | Community | New Lowell | Clearview (Simcoe County) | |
| New Osnaburgh | Mishkeegogamang First Nation | Ontario, Canada | Community | New Osnaburgh | Mishkeegogamang First Nation | |
| New Tecumseth | Simcoe | Ontario, Canada | City | New Tecumseth | South Simcoe | |
| Newboro | Rideau Lakes | Ontario, Canada | Community | Newboro | Rideau Lakes | |
| Newburgh | Stone Mills | Ontario, Canada | Community | Newburgh | Stone Mills | |
| Newbury | Middlesex | Ontario, Canada | City | Newbury | Middlesex County | |
| Newcastle | Clarington | Ontario, Canada | Community | Newcastle | Clarington | |
| Newington | South Stormont | Ontario, Canada | Community | Newington | South Stormont | |
| Newmarket | York | Ontario, Canada | City | Newmarket | York Region | |
| Newton | Perth East | Ontario, Canada | Community | Newton | Perth East | |
| Newtonville | Clarington | Ontario, Canada | Community | Newtonville | Clarington | |
| Neyaashiinigmiing | Chippewas of Nawash First Nation | Ontario, Canada | Community | Neyaashiinigmiing | Chippewas of Nawash First Nation | |
| Niagara County | ON | County | Ontario, Canada | County | Niagara Region | Central Ontario |
| Niagara Falls | Niagara County | Ontario, Canada | City | Niagara Falls | Niagara Region | |
| Niagara-On-The-Lake | Niagara County | Ontario, Canada | City | Niagara-on-the-Lake | Niagara Region | |
| Nichol | Centre Wellington | Ontario, Canada | Community | Nichol | Centre Wellington | |
| Nickel Centre | Greater Sudbury | Ontario, Canada | Community | Nickel Centre | Greater Sudbury | |
| Nigigoonsiminikaaning First Nation | Rainy River | Ontario, Canada | City | Nigigoonsiminikaaning First Nation | Rainy River District | |
| Nipigon | Thunder Bay | Ontario, Canada | City | Nipigon | Thunder Bay District | |
| Nipissing (Township of) | Parry Sound County | Ontario, Canada | City | Nipissing | Parry Sound District | |
| Nipissing County | ON | County | Ontario, Canada | County | Nipissing District | Northeastern Ontario |
| Nipissing First Nation | Nipissing County | Ontario, Canada | City | Nipissing First Nation | Nipissing District | |
| Nipissing, Unorganized, North Part | Nipissing County | Ontario, Canada | City | Nipissing, Unorganized, North Part | Nipissing District | |
| Nobel | McDougall | Ontario, Canada | Community | Nobel | Parry Sound District | |
| Nobleton | King | Ontario, Canada | Community | Nobleton | King Township | |
| Noëlville | French River | Ontario, Canada | Community | Noelville | Cosby, Mason and Martland Township | |
| Nolalu | Thunder Bay, Unorganized | Ontario, Canada | Community | Nolalu | Lybster Township | |
| Norfolk | Norfolk | Ontario, Canada | City | Norfolk County | Southwestern Ontario | |
| Norland | Kawartha Lakes | Ontario, Canada | Community | Norland | Kawartha Lakes | |
| North Algona Wilberforce | Renfrew | Ontario, Canada | City | North Algona-Wilberforce | Renfrew County | |
| North Bay | Nipissing County | Ontario, Canada | City | North Bay | Nipissing District | |
| North Caribou Lake First Nation | Kenora County | Ontario, Canada | City | North Caribou First Nation | Kenora District | |
| North Cobalt | Temiskaming Shores | Ontario, Canada | Community | North Cobalt | Temiskaming Shores | |
| North Dumfries | Waterloo County | Ontario, Canada | City | North Dumfries Township | Waterloo Region | |
| North Dundas | Stormont, Dundas and Glengarry County | Ontario, Canada | City | North Dundas | Stormont, Dundas and Glengarry United Counties | |
| North Frontenac | Frontenac County | Ontario, Canada | City | North Frontenac | Frontenac County | |
| North Glengarry | Stormont, Dundas and Glengarry County | Ontario, Canada | City | North Glengarry | Stormont, Dundas and Glengarry United Counties | |
| North Gower | Ottawa | Ontario, Canada | Community | North Gower | Ottawa (City of) | |
| North Grenville | Leeds and Grenville County | Ontario, Canada | City | North Grenville | Leeds and Grenville United Counties | |
| North Huron | Huron County | Ontario, Canada | City | North Huron | Huron County | |
| North Kawartha | Peterborough County | Ontario, Canada | City | North Kawartha | Peterborough (County of) | |
| North Lancaster | South Glengarry | Ontario, Canada | Community | North Lancaster | South Glengarry | |
| North Marysburgh | Prince Edward | Ontario, Canada | Community | North Marysburgh | Prince Edward County | |
| North Middlesex | Middlesex | Ontario, Canada | City | North Middlesex | Middlesex County | |
| North Monetville | French River | Ontario, Canada | Community | North Monetville | French River | |
| North Perth | Perth | Ontario, Canada | City | North Perth | Perth County | |
| North Spirit Lake | North Spirit Lake First Nation | Ontario, Canada | Community | North Spirit Lake | Kenora District | |
| North Spirit Lake First Nation | Kenora County | Ontario, Canada | City | North Spirit Lake First Nation | Kenora District | |
| North Stormont | Stormont, Dundas and Glengarry County | Ontario, Canada | City | North Stormont | Stormont, Dundas and Glengarry United Counties | |
| North York | Toronto County | Ontario, Canada | Community | North York | Toronto | |
| North York Central | Toronto County | Ontario, Canada | Community | North York Central | North York | |
| North York East | Toronto County | Ontario, Canada | Community | North York East | North York | |
| North York West | Toronto County | Ontario, Canada | Community | North York West | North York | |
| Northeastern Manitoulin and The Islands | Manitoulin County | Ontario, Canada | City | Manitoulin Island | Manitoulin District | |
| Northern Bruce Peninsula | Bruce | Ontario, Canada | City | Northern Bruce Peninsula | Bruce County | |
| Northwest Angle 33 First Nation | Kenora County | Ontario, Canada | City | Northwest Angle 33 First Nation | Kenora District | |
| Northwest Angle 37 First Nation | Kenora County | Ontario, Canada | City | Northwest Angle 37 First Nation | Kenora District | |
| Norwich | Oxford | Ontario, Canada | City | Norwich | Oxford County | |
| Norwich | Norwich | Ontario, Canada | Community | Norwich (Town of) | Norwich | |
| Norwood | Asphodel-Norwood | Ontario, Canada | Community | Norwood | Asphodel-Norwood | |
| Nottawa | Clearview | Community | Nottawa | Clearview (Simcoe County) | ||
| Oak Lake | Quinte West | Ontario, Canada | Community | Oak Lake | Quinte West | |
| Oak Ridges | Richmond Hill | Ontario, Canada | Community | Oak Ridges | Richmond Hill | |
| Oakland | Brant | Ontario, Canada | Community | Oakland | Brant County | |
| Oakville | Halton County | Ontario, Canada | City | Oakville | Halton South | |
| Oakwood | Kawartha Lakes | Ontario, Canada | Community | Oakwood | Kawartha Lakes | |
| Oba | Algoma, Unorganized, North Part | Ontario, Canada | Community | |||
| Obashkaandagaang/Washagamis Bay First Nation | Kenora County | Ontario, Canada | City | Washagamis Bay First Nation | Kenora District | |
| Ochiichagwe'babigo'ining First Nation | Kenora County | Ontario, Canada | City | Dalles First Nation | Kenora District | |
| O'Connor | Thunder Bay | Ontario, Canada | City | O'Connor | Thunder Bay District | |
| Odessa | Loyalist | Ontario, Canada | Community | Odessa | Loyalist Township | |
| Ogoki | Marten Falls First Nation | Ontario, Canada | Community | Ogoki | Kenora District | |
| Ohsweken | Six Nations of the Grand River | Ontario, Canada | Community | Ohsweken | Six Nations of the Grand River | |
| Oil Springs | Lambton | Ontario, Canada | City | Oil Springs | Lambton County | |
| Ojibway Nation of Saugeen First Nation | Thunder Bay | Ontario, Canada | City | Ojibway Nation of Saugeen First Nation | Thunder Bay District | |
| Ojibways of Onigaming First Nation | Kenora County | Ontario, Canada | City | Onigaming First Nation | Kenora District | |
| Oliver Paipoonge | Thunder Bay | Ontario, Canada | City | Oliver Paipoonge Township | Thunder Bay District | |
| Omemee | Kawartha Lakes | Ontario, Canada | Community | Omemee | Kawartha Lakes | |
| Ompah | North Frontenac | Ontario, Canada | Community | Ompah | North Frontenac | |
| Onaping Falls | Greater Sudbury | Ontario, Canada | Community | Onaping Falls | Greater Sudbury | |
| Oneida Nation of the Thames First Nation | Middlesex | Ontario, Canada | City | Oneida Nation of the Thames | North Middlesex | |
| Opasatika | Cochrane County | Ontario, Canada | City | Opasatika | Idington Township | |
| Orangeville | Dufferin County | Ontario, Canada | City | Orangeville | Dufferin County | |
| Orient Bay | Greenstone | Ontario, Canada | Community | Orient Bay | Greenstone | |
| Orillia | Simcoe | Ontario, Canada | City | Orillia | Orillia and Area | |
| Orleans | Ottawa | Ontario, Canada | Community | Orleans | Ottawa (City of) | |
| Oro Medonte | Simcoe | City | Ontario, Canada | City | Oro-Medonte | Orillia and Area |
| Oro Station | Oro-Medonte | Ontario, Canada | Community | Oro Station | Oro-Medonte | |
| Oro-Medonte | Simcoe | Ontario, Canada | City | Oro-Medonte | Orillia and Area | |
| Orono | Clarington | Ontario, Canada | Community | Orono | Clarington | |
| Orton | Erin | Ontario, Canada | Community | Orton | Erin | |
| Oshawa | Durham County | Ontario, Canada | City | Oshawa | Durham Region | |
| Osnaburgh House | Kenora, Unorganized | Ontario, Canada | Community | |||
| Osprey | Grey Highlands | Ontario, Canada | Community | Osprey | Grey Highlands | |
| Otonabee-South Monaghan | Peterborough County | Ontario, Canada | City | Otonabee-South Monaghan | Peterborough (County of) | |
| Ottawa | Ottawa County | Ontario, Canada | City | Ottawa | Ottawa (City of) | |
| Ottawa County | ON | County | Ontario, Canada | County | Ottawa (City of) | Eastern Ontario |
| Owen Sound | Grey County | Ontario, Canada | City | Owen Sound | Grey County | |
| Paisley | Arran-Elderslie | Community | Paisley | Arran-Elderslie | ||
| Papineau-Cameron | Nipissing County | Ontario, Canada | City | Papineau-Cameron | Nipissing District | |
| Paris | Brant | Ontario, Canada | Community | Paris | Brant County | |
| Parry Sound | Parry Sound County | Ontario, Canada | City | Parry Sound | Parry Sound District | |
| Parry Sound, Unorganized, Centre Part | Parry Sound County | Ontario, Canada | City | Parry Sound, Unorganized, Centre Part | Parry Sound District | |
| Pass Lake | Shuniah | Ontario, Canada | Community | Pass Lake | Thunder Bay District | |
| Pawitik | Naotkamegwanning/Whitefish Bay First Nation | Ontario, Canada | Community | Pawitik | Willingdon Township | |
| Pays Plat | Thunder Bay, Unorganized | Ontario, Canada | Community | Pays Plat | Thunder Bay, Unorganized | |
| Pays Plat First Nation | Thunder Bay | Ontario, Canada | City | Pays Plat First Nation | Thunder Bay District | |
| Peawanuck | Kenora, Unorganized | Ontario, Canada | Community | Peawanuck | Kenora District | |
| Peawanuck First Nation | Kenora County | Ontario, Canada | City | Weenusk First Nation | Kenora District | |
| Pefferlaw | Georgina | Ontario, Canada | Community | Pefferlaw | Georgina | |
| Pelee | Essex | Ontario, Canada | City | Pelee Island | Essex County | |
| Pelham | Niagara County | Ontario, Canada | City | Pelham | Niagara Region | |
| Pembroke | Renfrew | Ontario, Canada | City | Pembroke | Renfrew County | |
| Pendleton | Alfred and Plantagenet | Ontario, Canada | Community | Pendleton | Alfred and Plantagenet | |
| Penetanguishene | Simcoe | Ontario, Canada | City | Penetanguishene | Simcoe North | |
| Perkinsfield | Tiny | Ontario, Canada | Community | Perkinsfield | Tiny | |
| Perrault Falls | Kenora, Unorganized | Ontario, Canada | Community | Perrault Falls | Kenora District | |
| Perry | Parry Sound County | Ontario, Canada | City | Perry | Parry Sound District | |
| Perth East | Perth | Ontario, Canada | City | Perth East | Perth County | |
| Perth Road Village | South Frontenac | Ontario, Canada | Community | Perth Road Village | South Frontenac | |
| Perth South | Perth | Ontario, Canada | City | Perth South | Perth County | |
| Petawawa | Renfrew | Ontario, Canada | City | Petawawa | Renfrew County | |
| Peterborough | Peterborough County | Ontario, Canada | City | Peterborough | Peterborough (County of) | |
| Petersburg | Wilmot | Ontario, Canada | Community | Petersburg | Wilmot Township | |
| Petrolia | Lambton | Ontario, Canada | City | Petrolia | Lambton County | |
| Phelpston | Springwater | Ontario, Canada | Community | Phelpston | Springwater | |
| Pic Mobert First Nation | Thunder Bay | Ontario, Canada | City | Pic Mobert First Nation | Thunder Bay District | |
| Pickering | Durham County | Ontario, Canada | City | Pickering | Durham Region | |
| Pickle Lake | Kenora County | Ontario, Canada | City | Pickle Lake | Kenora District | |
| Pikangikum | Pikangikum First Nation | Ontario, Canada | Community | Pikangikum | Kenora District | |
| Pikangikum First Nation | Kenora County | Ontario, Canada | City | Pikangikum First Nation | Kenora District | |
| Pilkington | Centre Wellington | Ontario, Canada | Community | Pilkington | Centre Wellington | |
| Pine Grove | Norfolk | Ontario, Canada | Community | Pine Grove | Norfolk County | |
| Plainfield | Belleville | Ontario, Canada | Community | Plainfield | Belleville | |
| Plantagenet | Alfred and Plantagenet | Ontario, Canada | Community | Plantagenet | Alfred and Plantagenet | |
| Plummer Additional | Algoma County | Ontario, Canada | City | Plummer Additional | Algoma District | |
| Plympton-Wyoming | Lambton | Ontario, Canada | City | Plympton-Wyoming | Lambton County | |
| Point Alexander | Laurentian Hills | Ontario, Canada | Community | Point Alexander | Renfrew County | |
| Point Edward | Lambton | Ontario, Canada | City | Point Edward | Lambton County | |
| Pontypool | Kawartha Lakes | Ontario, Canada | Community | Pontypool | Kawartha Lakes | |
| Poplar Hill | Poplar Hill First Nation | Ontario, Canada | Community | Poplar Hill | Kenora District | |
| Poplar Hill First Nation | Kenora County | Ontario, Canada | City | Poplar Hill First Nation | Kenora District | |
| Porcupine | Timmins | Ontario, Canada | Community | Porcupine | Cochrane District | |
| Porquis Junction | Iroquois Falls | Ontario, Canada | Community | Porquis Junction | Teefy Township | |
| Port Carling | Muskoka Lakes | Ontario, Canada | Community | Port Carling | Muskoka Lakes Township | |
| Port Colborne | Niagara County | Ontario, Canada | City | Port Colborne | Niagara Region | |
| Port Dover | Norfolk | Ontario, Canada | Community | Port Dover | Norfolk County | |
| Port Elgin | Saugeen Shores | Ontario, Canada | Community | Port Elgin | Saugeen Shores | |
| Port Hope | Northumberland | Ontario, Canada | City | Port Hope (Municipality of) | Northumberland County | |
| Port Loring | Parry Sound, Unorganized, Centre Part | Ontario, Canada | Community | Port Loring | Parry Sound District | |
| Port McNicoll | Tay | Ontario, Canada | Community | Port McNicoll | Tay | |
| Port Perry | Scugog | Ontario, Canada | Community | Port Perry | Scugog | |
| Port Robinson | Thorold | Ontario, Canada | Community | Port Robinson | Thorold | |
| Port Rowan | Norfolk | Ontario, Canada | Community | Port Rowan | Norfolk County | |
| Port Sandfield | Muskoka Lakes | Ontario, Canada | Community | Port Sandfield | Muskoka Lakes Township | |
| Port Severn | Georgian Bay | Ontario, Canada | Community | Port Severn | Georgian Bay Township | |
| Port Sydney | Huntsville | Ontario, Canada | Community | Port Sydney | Huntsville | |
| Port Weller | St Catharines | Ontario, Canada | Community | Port Weller | St Catharines | |
| Portland | Rideau Lakes | Ontario, Canada | Community | Portland | Rideau Lakes | |
| Powassan | Parry Sound County | Ontario, Canada | City | Powassan | Parry Sound District | |
| Prescott | Leeds and Grenville County | Ontario, Canada | City | Prescott | Leeds and Grenville United Counties | |
| Prescott and Russell County | ON | Ontario, Canada | County | Prescott and Russell United Counties | Eastern Ontario | |
| Prince | Algoma County | Ontario, Canada | City | Prince Township | Algoma District | |
| Prince Albert | Scugog | Ontario, Canada | Community | Prince Albert | Scugog | |
| Prince Edward County | ON | County | Ontario, Canada | County | Prince Edward County | Eastern Ontario |
| Providence Bay | Central Manitoulin | Ontario, Canada | Community | Providence Bay | Carnarvon Township | |
| Puslinch | Wellington | Ontario, Canada | City | Puslinch | Wellington County | |
| QC | Canada | Province | Quebec, Canada | State | Québec | Canada |
| Queenston | Niagara-On-The-Lake | Ontario, Canada | Community | Queenston | Niagara-on-the-Lake | |
| Queensville | East Gwillimbury | Ontario, Canada | Community | Queensville | East Gwillimbury | |
| Quinte West | Hastings County | Ontario, Canada | City | Quinte West | South Hastings | |
| Rainy River | Rainy River | Ontario, Canada | City | Rainy River | Rainy River District | |
| Rainy River County | ON | County | Ontario, Canada | County | Rainy River District | Northwestern Ontario |
| Rainy River First Nation | Rainy River | Ontario, Canada | City | Rainy River First Nation | Rainy River District | |
| Rainy River, Unorganized | Rainy River | Ontario, Canada | City | Rainy River, Unorganized | Rainy River District | |
| Raith | Thunder Bay, Unorganized | Ontario, Canada | Community | Raith | Golding Township | |
| Rama | Chippewas of Rama First Nation | Ontario, Canada | Community | Rama | Orillia and Area | |
| Ramore | Black River-Matheson | Ontario, Canada | Community | Ramore | Playfair Township | |
| Reaboro | Kawartha Lakes | Ontario, Canada | Community | Reaboro | Kawartha Lakes | |
| Red Lake | Kenora County | Ontario, Canada | City | Red Lake | Kenora District | |
| Red Rock (Township) | Thunder Bay | Ontario, Canada | City | Red Rock | Thunder Bay District | |
| Red Rock First Nation | Thunder Bay | Ontario, Canada | City | Red Rock Indian Band | Thunder Bay District | |
| Redbridge | Nipissing, Unorganized, North Part | Ontario, Canada | Community | Redbridge | Widdifield Township | |
| Renfrew | ON | Ontario, Canada | County | Renfrew County | Eastern Ontario | |
| Renfrew | Renfrew | Ontario, Canada | City | Renfrew | Renfrew County | |
| Richards Landing | St Joseph | Ontario, Canada | Community | Richards Landing | Algoma District | |
| Richmond | Ottawa | Ontario, Canada | Community | Richmond (Ottawa) | Ottawa (City of) | |
| Richmond Hill | York | Ontario, Canada | City | Richmond Hill | York Region | |
| Rideau Lakes | Leeds and Grenville County | Ontario, Canada | City | Rideau Lakes | Leeds and Grenville United Counties | |
| Ridgeville | Pelham | Ontario, Canada | Community | Ridgeville | Pelham | |
| Ridgeway | Fort Erie | Ontario, Canada | Community | Ridgeway | Fort Erie | |
| Ripley | Huron-Kinloss | Ontario, Canada | Community | Ripley | Huron-Kinloss | |
| River Valley | West Nipissing | Ontario, Canada | Community | River Valley | Nipissing District | |
| Rockcliffe Park | Ottawa | Ontario, Canada | Community | Rockcliffe Park | Ottawa (City of) | |
| Rockwood | Guelph/Eramosa | Ontario, Canada | Community | Rockwood | Guelph-Eramosa | |
| Rose Island | Wollaston | Ontario, Canada | Community | Rose Island | Wollaston | |
| Rosedale | Kawartha Lakes | Ontario, Canada | Community | Rosedale | Kawartha Lakes | |
| Roseneath | Alnwick/Haldimand | Ontario, Canada | Community | Roseneath | Alnwick/Haldimand | |
| Rosseau | Seguin | Ontario, Canada | Community | Rosseau | Parry Sound District | |
| Rosslyn | Oliver Paipoonge | Ontario, Canada | Community | Rossylyn Village | Oliver Paipoonge Township | |
| Rossmore | Prince Edward | Ontario, Canada | Community | Rossmore | Prince Edward County | |
| Rossport | Thunder Bay, Unorganized | Ontario, Canada | Community | Rossport | Lahontan Township | |
| Rostock | Perth East | Ontario, Canada | Community | Rostock | Perth East | |
| Rutherglen | Bonfield | Ontario, Canada | Community | Rutherglen | Bonfield | |
| Ryerson | Parry Sound County | Ontario, Canada | City | Ryerson | Parry Sound District | |
| Sables-Spanish Rivers | Sudbury County | Ontario, Canada | City | Sables-Spanish Rivers Township | Sudbury District | |
| Sachigo Lake | Sachigo Lake First Nation | Ontario, Canada | Community | Sachigo Lake | Kenora District | |
| Sachigo Lake First Nation | Kenora County | Ontario, Canada | City | Sachigo Lake First Nation | Kenora District | |
| Sagamok Anishnawbek First Nation | Sudbury County | Ontario, Canada | City | Sagamok Anishnawbek First Nation | Sudbury District | |
| Sandy Lake First Nation | Kenora County | Ontario, Canada | City | Sandy Lake First Nation | Kenora District | |
| Sapawe | Atikokan | Ontario, Canada | Community | Sapawe | Rainy River District | |
| Sarnia | Lambton | Ontario, Canada | City | Sarnia | Lambton County | |
| Sauble Beach | South Bruce Peninsula | Ontario, Canada | Community | Sauble Beach | South Bruce Peninsula | |
| Saugeen Shores | Bruce | Ontario, Canada | City | Saugeen Shores | Bruce County | |
| Sault Ste. Marie | Algoma County | Ontario, Canada | City | Sault Ste. Marie | Algoma District | |
| Savant Lake | Thunder Bay, Unorganized | Ontario, Canada | Community | Savant Lake | Thunder Bay, Unorganized | |
| Scarborough | Toronto County | Ontario, Canada | Community | Scarborough | Toronto | |
| Scarborough Central | Toronto County | Ontario, Canada | Community | Scarborough Central | Scarborough | |
| Scarborough North | Toronto County | Ontario, Canada | Community | Scarborough North | Scarborough | |
| Scarborough South | Toronto County | Ontario, Canada | Community | Scarborough South | Scarborough | |
| Schomberg | King | Ontario, Canada | Community | Schomberg | King Township | |
| Schumacher | Timmins | Ontario, Canada | Community | Schumacher | Tisdale Township | |
| Scotland | Brant | Ontario, Canada | Community | Scotland | Brant County | |
| Scugog Island | Scugog | Ontario, Canada | Community | Scugog Island | Scugog | |
| Seaforth | Huron East | Ontario, Canada | Community | Seaforth | Huron East | |
| Seagrave | Scugog | Ontario, Canada | Community | Seagrave | Scugog | |
| Sebright | Kawartha Lakes | Ontario, Canada | Community | Sebright | Kawartha Lakes | |
| Sebringville | Perth East | Ontario, Canada | Community | Sebringville | Perth East | |
| Seeley's Bay | Rideau Lakes | Ontario, Canada | Community | Seeley's Bay | Rideau Lakes | |
| Selkirk | Haldimand | Ontario, Canada | Community | Selkirk | Haldimand County | |
| Serpent River | The North Shore (Township) | Ontario, Canada | Community | Serpent River | Algoma District | |
| Sesekinika | Timiskaming, Unorganized, West Part | Ontario, Canada | Community | Sesekinika | Timiskaming, Unorganized, West Part | |
| Severn | Simcoe | Ontario, Canada | City | Severn | Orillia and Area | |
| Severn Bridge | Gravenhurst | Ontario, Canada | Community | Severn Bridge | Gravenhurst | |
| Shabaqua | Thunder Bay, Unorganized | Ontario, Canada | Community | Shabaqua | Thunder Bay, Unorganized | |
| Shabaqua Corners | Thunder Bay, Unorganized | Ontario, Canada | Community | Shabaqua Corners | Thunder Bay, Unorganized | |
| Shakespeare | Perth East | Ontario, Canada | Community | Shakespeare | Perth East | |
| Shallow Lake | Georgian Bluffs | Ontario, Canada | Community | Shallow Lake | Georgian Bluffs | |
| Sharbot Lake | Central Frontenac | Ontario, Canada | Community | Sharbot Lake | Central Frontenac | |
| Sharon | East Gwillimbury | Ontario, Canada | Community | Sharon | East Gwillimbury | |
| Shawanaga First Nation | Parry Sound County | Ontario, Canada | City | Shawanaga First Nation | Parry Sound District | |
| Shebandowan | Thunder Bay, Unorganized | Ontario, Canada | Community | Shebandowan | Thunder Bay | |
| Sheguiandah First Nation | Manitoulin County | Ontario, Canada | City | Sheguiandah | Manitoulin District | |
| Shelburne | Dufferin County | Ontario, Canada | City | Shelburne | Dufferin County | |
| Sherkston | Port Colborne | Ontario, Canada | Community | Sherkston | Port Colborne | |
| Sheshegwaning First Nation | Manitoulin County | Ontario, Canada | City | Sheshegwaning | Manitoulin District | |
| Shoal Lake 40 First Nation | Kenora County | Ontario, Canada | City | Shoal Lake 40 First Nation | Kenora District | |
| Shuniah | Thunder Bay | Ontario, Canada | City | Shuniah | Thunder Bay District | |
| Simcoe | ON | Ontario, Canada | County | Simcoe County | Central Ontario | |
| Simcoe | Norfolk | Ontario, Canada | Community | Simcoe | Norfolk County | |
| Sioux Lookout | Kenora County | Ontario, Canada | City | Sioux Lookout | Drayton Township | |
| Sioux Narrows | Sioux Narrows-Nestor Falls | Ontario, Canada | Community | Sioux Narrows | Kenora District | |
| Slate Falls | Slate Falls First Nation | Ontario, Canada | Community | Slate Falls | Kenora District | |
| Slate River | Oliver Paipoonge | Ontario, Canada | Community | Slate River | Oliver Paipoonge Township | |
| Smiths Falls | Lanark | Ontario, Canada | City | Smiths Falls | Lanark County | |
| Smithville | West Lincoln | Ontario, Canada | Community | Smithville | West Lincoln | |
| Snow Road Station | North Frontenac | Ontario, Canada | Community | Snow Road Station | North Frontenac | |
| Somerville | Kawartha Lakes County | Ontario, Canada | City | Somerville | Kawartha Lakes | |
| Sophiasburgh | Prince Edward | Ontario, Canada | Community | Sophiasburgh | Prince Edward County | |
| South Baymouth | Tehkummah | Ontario, Canada | Community | South Baymouth | Tehkummah | |
| South Frontenac | Frontenac County | Ontario, Canada | City | South Frontenac | Frontenac County | |
| South Gillies | Gillies | Ontario, Canada | Community | South Gillies | Gillies Township | |
| South Porcupine | Timmins | Ontario, Canada | Community | South Porcupine | Whitney Township | |
| Southampton | Saugeen Shores | Ontario, Canada | Community | Southampton | Saugeen Shores | |
| Southgate | Grey County | Ontario, Canada | City | Southgate | Grey County | |
| Spragge | The North Shore (Township) | Ontario, Canada | Community | Spragge Township | Algoma District | |
| Spring Brook | Stirling-Rawdon | Ontario, Canada | Community | Spring Brook | Stirling-Rawdon | |
| Springwater Township | Simcoe | City | Ontario, Canada | City | Springwater | Simcoe North |
| St Agatha | Wilmot | Ontario, Canada | Community | St Agatha | Wilmot Township | |
| St Andrews West | South Stormont | Ontario, Canada | Community | St Andrews | South Stormont | |
| St Anns | West Lincoln | Ontario, Canada | Community | St Anns | West Lincoln | |
| St Charles | Sudbury County | Ontario, Canada | City | St Charles | Sudbury District | |
| St Clements | Wellesley | Ontario, Canada | Community | St Clements | Wellesley Township | |
| St Davids | Niagara-On-The-Lake | Ontario, Canada | Community | St David's | Niagara-on-the-Lake | |
| St Elmo | North Glengarry | Ontario, Canada | Community | St Elmo | North Glengarry | |
| St Eugene | East Hawkesbury | Ontario, Canada | Community | St Eugene | East Hawkesbury | |
| St George | Brant | Ontario, Canada | Community | St George | Brant County | |
| St Jacobs | Woolwich | Ontario, Canada | Community | St Jacobs | Woolwich Township | |
| St Joseph | Algoma County | Ontario, Canada | City | St Joseph | Algoma District | |
| St Marys | Perth | Ontario, Canada | City | St Marys | Perth County | |
| St Pascal Baylon | Clarence-Rockland | Ontario, Canada | Community | St Pascal Baylon | Clarence-Rockland | |
| St Pauls | Perth South | Ontario, Canada | Community | St Pauls | Perth South | |
| Stanhope | Algonquin Highlands | Ontario, Canada | Community | Stanhope | Algonquin Highlands | |
| Stanjikoming First Nation | Mitaanjigamiing First Nation | Ontario, Canada | Community | Stanjikoming First Nation | Rainy River District | |
| Stayner | Clearview | Ontario, Canada | Community | Stayner | Clearview (Simcoe County) | |
| Ste Anne de Prescott | East Hawkesbury | Ontario, Canada | Community | Ste Anne de Prescott | East Hawkesbury | |
| Stevensville | Fort Erie | Ontario, Canada | Community | Stevensville | Fort Erie | |
| Stirling | Stirling-Rawdon | Ontario, Canada | Community | Stirling | Stirling-Rawdon | |
| Stittsville | Ottawa | Ontario, Canada | Community | Stittsville | Ottawa (City of) | |
| Stormont, Dundas and Glengarry County | ON | County | Ontario, Canada | County | Stormont, Dundas and Glengarry United Counties | Eastern Ontario |
| Stouffville | Whitchurch-Stouffville | Ontario, Canada | Community | Stouffville | Whitchurch-Stouffville | |
| Stratford | Perth | Ontario, Canada | City | Stratford | Perth County | |
| Stratton | Morley | Ontario, Canada | Community | Stratton Township | Rainy River District | |
| Strickland | Fauquier-Strickland | Ontario, Canada | Community | Strickland | Shackleton Township | |
| Stroud | Innisfil | Ontario, Canada | Community | Stroud | Innisfil | |
| Sturgeon Falls | West Nipissing | Ontario, Canada | Community | Sturgeon Falls | Springer Township | |
| Sudbury | Greater Sudbury | Ontario, Canada | Community | Sudbury | Greater Sudbury | |
| Sudbury County | ON | County | Ontario, Canada | County | Sudbury District | Northeastern Ontario |
| Sudbury, Unorganized, North Part | Sudbury County | Ontario, Canada | City | Sudbury, Unorganized, North Part | Sudbury | |
| Summer Beaver | Nibinamik First Nation | Ontario, Canada | Community | Summer Beaver | Nibinamik First Nation | |
| Summerstown | South Glengarry | Ontario, Canada | Community | Summerstown | South Glengarry | |
| Sunderland | Brock | Ontario, Canada | Community | Sunderland | Brock | |
| Sutton | Georgina | Ontario, Canada | Community | Sutton | Georgina | |
| Swastika | Kirkland Lake | Ontario, Canada | Community | Swastika | Teck Township | |
| Sydenham | South Frontenac | Ontario, Canada | Community | Sydenham | South Frontenac | |
| Tamworth | Stone Mills | Ontario, Canada | Community | Tamworth | Stone Mills | |
| Tara | Arran-Elderslie | Ontario, Canada | Community | Tara | Arran-Elderslie | |
| Tarzwell | Timiskaming, Unorganized, West Part | Ontario, Canada | Community | |||
| Teeswater | South Bruce | Ontario, Canada | Community | Teeswater | South Bruce | |
| Teeterville | Norfolk | Ontario, Canada | Community | Teeterville | Norfolk County | |
| Temagami First Nation | Nipissing County | Ontario, Canada | City | Temagami First Nation | Nipissing District | |
| Temiskaming Shores | Timiskaming County | Ontario, Canada | City | Temiskaming Shores | Timiskaming District | |
| Terra Cotta | Caledon | Ontario, Canada | Community | Terra Cotta | Caledon (Town of) | |
| Terrace Bay | Thunder Bay | Ontario, Canada | City | Terrace Bay | Thunder Bay District | |
| Thames Centre | Middlesex | Ontario, Canada | City | Thames Centre | Middlesex County | |
| The Archipelago | Parry Sound County | Ontario, Canada | City | Archipelago | Parry Sound District | |
| The Blue Mountains | Grey County | Ontario, Canada | City | Blue Mountains | Grey County | |
| The Nation Municipality | Prescott and Russell County | Ontario, Canada | City | The Nation | Prescott and Russell United Counties | |
| The North Shore (Township) | Algoma County | Ontario, Canada | City | The North Shore | Algoma District | |
| The Ridge | Wollaston | Ontario, Canada | Community | Ridge (The) | Wollaston | |
| Thessalon (Town of) | Algoma County | Ontario, Canada | City | Thessalon | Algoma District | |
| Thessalon First Nation | Algoma County | Ontario, Canada | City | Thessalon First Nation | Algoma District | |
| Thomasburg | Tweed | Ontario, Canada | Community | Thomasburg | Tweed | |
| Thornbury | The Blue Mountains | Ontario, Canada | Community | Thornbury | Blue Mountains | |
| Thorne | Nipissing, Unorganized, North Part | Ontario, Canada | Community | Thorne | Poitras Township | |
| Thornhill | Markham | Ontario, Canada | Community | Thornhill East | Markham | |
| Thornloe | Timiskaming County | Ontario, Canada | City | Thornloe | Timiskaming District | |
| Thornton | Essa | Ontario, Canada | Community | Thornton | Essa | |
| Thorold | Niagara County | Ontario, Canada | City | Thorold | Niagara Region | |
| Thunder Bay | Thunder Bay | Ontario, Canada | City | Thunder Bay | Thunder Bay District | |
| Thunder Bay County | ON | County | Ontario, Canada | County | Thunder Bay District | Northwestern Ontario |
| Thunder Bay, Unorganized | Thunder Bay | Ontario, Canada | City | Thunder Bay, Unorganized | Thunder Bay District | |
| Thurlow | Belleville | Ontario, Canada | Community | Thurlow | Belleville | |
| Tichborne | Central Frontenac | Ontario, Canada | Community | Tichborne | Central Frontenac | |
| Tillsonburg | Oxford | Ontario, Canada | City | Tillsonburg | Oxford County | |
| Timiskaming County | ON | Ontario, Canada | County | Timiskaming District | Northeastern Ontario | |
| Timiskaming, Unorganized, West Part | Timiskaming County | Ontario, Canada | City | Timiskaming, Unorganized, West Part | Timiskaming District | |
| Timmins | Cochrane County | Ontario, Canada | City | Timmins | Cochrane District | |
| Tiny | Simcoe | Ontario, Canada | City | Tiny | Simcoe North | |
| Tiverton | Kincardine | Ontario, Canada | Community | Tiverton | Kincardine | |
| Tobermory | Northern Bruce Peninsula | Ontario, Canada | Community | Tobermory | Northern Bruce Peninsula | |
| Toledo | Elizabethtown-Kitley | Ontario, Canada | Community | Toledo | Elizabethtown-Kitley | |
| Toronto County | ON | County | Ontario, Canada | County | Toronto | Greater Toronto Area |
| Toronto Downtown | Toronto County | Ontario, Canada | Community | Toronto Downtown | Toronto | |
| Toronto Downtown Central | Toronto County | Ontario, Canada | Community | Toronto Downtown Central | Toronto Downtown | |
| Toronto Downtown East | Toronto County | Ontario, Canada | Community | Toronto Downtown East | Toronto Downtown | |
| Toronto Downtown North | Toronto County | Ontario, Canada | Community | Toronto Downtown North | Toronto Downtown | |
| Toronto Downtown West | Toronto County | Ontario, Canada | Community | Toronto Downtown West | Toronto Downtown | |
| Tottenham | New Tecumseth | Ontario, Canada | Community | Tottenham | New Tecumseth | |
| Townsend | Haldimand | Ontario, Canada | Community | Townsend | Haldimand County | |
| Treadwell | Alfred and Plantagenet | Ontario, Canada | Community | Treadwell | Alfred and Plantagenet | |
| Trent Hills | Northumberland | Ontario, Canada | City | Trent Hills | Northumberland County | |
| Trent Lakes | Peterborough County | Ontario, Canada | City | Trent Lakes | Peterborough (County of) | |
| Trent River | Trent Hills | Ontario, Canada | Community | Trent River | Trent Hills | |
| Trenton | Quinte West | Ontario, Canada | Community | Trenton | Quinte West | |
| Tudor and Cashel | Hastings County | Ontario, Canada | City | Tudor and Cashel | Central Hastings | |
| Tunis | Cochrane, Unorganized, North Part | Ontario, Canada | Community | Tunis | Newmarket Township | |
| Tweed | Hastings County | Ontario, Canada | City | Tweed | Central Hastings | |
| Tyendinaga | Hastings County | Ontario, Canada | City | Tyendinaga (Township of) | South Hastings | |
| Udora | Georgina | Ontario, Canada | Community | Udora (York Region) | Georgina | |
| Unionville | Markham | Ontario, Canada | Community | Unionville | Markham | |
| Upsala | Thunder Bay, Unorganized | Ontario, Canada | Community | Upsala | Thunder Bay District | |
| Utterson | Huntsville | Ontario, Canada | Community | Utterson | Huntsville | |
| Uxbridge | Durham County | Ontario, Canada | City | Uxbridge (Township of) | Durham Region | |
| Val Caron | Greater Sudbury | Ontario, Canada | Community | Val Caron | Sudbury District | |
| Val Côté | Mattice-Val Côté | Ontario, Canada | Community | Val Côté | Devitt Township | |
| Val Gagné | Black River-Matheson | Ontario, Canada | Community | Val Gagné | Taylor Township | |
| Val Rita | Val Rita-Harty | Ontario, Canada | Community | Val Rita | Owens Township | |
| Val Rita-Harty | Cochrane County | Ontario, Canada | City | Val Rita-Harty Township | Cochrane District | |
| Val Thérèse | Greater Sudbury | Ontario, Canada | Community | Val Therese | Sudbury District | |
| Valley East | Greater Sudbury | Ontario, Canada | Community | Valley East | Greater Sudbury | |
| Vanastra | Bluewater | Ontario, Canada | Community | Vanastra | Bluewater | |
| Vandorf | Whitchurch-Stouffville | Ontario, Canada | Community | Vandorf | Whitchurch-Stouffville | |
| Vanier | Ottawa | Ontario, Canada | Community | Vanier | Ottawa (City of) | |
| Vankleek Hill | Champlain | Ontario, Canada | Community | Vankleek Hill | Champlain | |
| Varna | Bluewater | Ontario, Canada | Community | Varna | Bluewater | |
| Vasey | Tay | Ontario, Canada | Community | Vasey | Tay | |
| Vermilion Bay | Machin | Ontario, Canada | Community | Vermilion Bay | Kenora District | |
| Verner | West Nipissing | Ontario, Canada | Community | Verner | Nipissing District | |
| Verona | South Frontenac | Ontario, Canada | Community | Verona | South Frontenac | |
| Victoria Harbour | Tay | Ontario, Canada | Community | Victoria Harbour | Tay | |
| Vineland | Lincoln | Ontario, Canada | Community | Vineland | Lincoln | |
| Virginiatown | McGarry | Ontario, Canada | Community | Virginiatown | McGarry Township | |
| Wabaseemoong Independent Nations | Kenora County | Ontario, Canada | City | Whitedog First Nation | Kenora District | |
| Wabauskang First Nation | Kenora County | Ontario, Canada | City | Wabauskang First Nation | Kenora District | |
| Wabigoon | Kenora, Unorganized | Ontario, Canada | Community | Wabigoon Township | Kenora District | |
| Wabigoon Lake First Nation | Kenora County | Ontario, Canada | City | Wabigoon Lake First Nation | Kenora District | |
| Wahgoshig First Nation | Cochrane County | Ontario, Canada | City | Wahgoshig First Nation | Cochrane District | |
| Wahnapitae First Nation | Sudbury County | Ontario, Canada | City | Wahnapitae First Nation | Sudbury District | |
| Wahta Mohawk First Nation | Muskoka County | Ontario, Canada | City | Wahta Mohawk First Nation | Muskoka District | |
| Wainfleet | Niagara County | Ontario, Canada | City | Wainfleet | Niagara Region | |
| Walkerton | Brockton | Ontario, Canada | Community | Walkerton | Brockton | |
| Wallbridge | Quinte West | Ontario, Canada | Community | Wallbridge | Quinte West | |
| Wallenstein | Wellesley | Ontario, Canada | Community | Wallenstein | Wellesley Township | |
| Walpole Island First Nation | Chatham-Kent County | Ontario, Canada | City | Walpole Island First Nation | Chatham-Kent | |
| Wapekeka First Nation | Kenora County | Ontario, Canada | City | Wapekeka First Nation | Kenora District | |
| Warminster | Oro-Medonte | Ontario, Canada | Community | Warminster | Oro-Medonte | |
| Warren | Markstay-Warren | Ontario, Canada | Community | Warren | Markstay-Warren | |
| Wasaga Beach | Simcoe | Ontario, Canada | City | Wasaga Beach | North West Simcoe | |
| Washago | Severn | Ontario, Canada | Community | Washago | Severn | |
| Waterford | Norfolk | Ontario, Canada | Community | Waterford | Norfolk County | |
| Waterloo | Waterloo County | Ontario, Canada | City | Waterloo | Waterloo Region | |
| Waterloo County | ON | Ontario, Canada | County | Waterloo Region | Southwestern Ontario | |
| Watsons Corners | Lanark Highlands | Ontario, Canada | Community | Watsons Corners | Lanark Highlands | |
| Waubaushene | Tay | Ontario, Canada | Community | Waubaushene | Tay | |
| Wauzhushk Onigum/Rat Portage First Nation | Kenora County | Ontario, Canada | City | Wauzhushk Onigum First Nation | Kenora District | |
| Waverley | Tay | Ontario, Canada | Community | Waverley | Tay | |
| Wawa | Algoma County | Ontario, Canada | City | Wawa | Algoma District | |
| Wawakapewin First Nation | Kenora County | Ontario, Canada | City | Wawakapewin First Nation | Kenora District | |
| Weagamow Lake | North Caribou Lake First Nation | Ontario, Canada | Community | Weagamow Lake | Kenora District | |
| Webbwood | Sables-Spanish Rivers | Ontario, Canada | Community | Webbwood | Sables-Spanish Rivers Township | |
| Webequie | Webequie First Nation | Ontario, Canada | Community | Webequie | Kenora District | |
| Weenusk First Nation | Kenora County | Ontario, Canada | City | Weenusk First Nation | Kenora District | |
| Welland | Niagara County | Ontario, Canada | City | Welland | Niagara Region | |
| Wellandport | West Lincoln | Ontario, Canada | Community | Wellandport | West Lincoln | |
| Wellesley | Waterloo County | Ontario, Canada | City | Wellesley Township | Waterloo Region | |
| Wellington | ON | Ontario, Canada | County | Wellington County | Central Ontario | |
| Wellington North | Wellington | Ontario, Canada | City | Wellington North | Wellington County | |
| Wendover | Alfred and Plantagenet | Ontario, Canada | Community | Wendover | Alfred and Plantagenet | |
| West Carleton | Ottawa | Ontario, Canada | Community | West Carleton | Ottawa (City of) | |
| West Elgin | Elgin | Ontario, Canada | City | West Elgin | Elgin County | |
| West Garafraxa | Centre Wellington | Ontario, Canada | Community | West Garafraxa | Centre Wellington | |
| West Grey | Grey County | Ontario, Canada | City | West Grey | Grey County | |
| West Guilford | Dysart, Dudley, Harcourt, Guilford, Harburn, Bruton, Havelock, Eyre and Clyde | Ontario, Canada | Community | West Guilford | Dysart | |
| West Lincoln | Niagara County | Ontario, Canada | City | West Lincoln | Niagara Region | |
| West Nipissing | Nipissing County | Ontario, Canada | City | West Nipissing | Nipissing District | |
| West Perth | Perth | Ontario, Canada | City | West Perth | Perth County | |
| Westport | Leeds and Grenville County | Ontario, Canada | City | Westport | Leeds and Grenville United Counties | |
| Whitby | Durham County | Ontario, Canada | City | Whitby | Durham Region | |
| Whitchurch-Stouffville | York | Ontario, Canada | City | Whitchurch-Stouffville | York Region | |
| White River | Algoma County | Ontario, Canada | City | White River | Hunt Township | |
| Whitedog | Wabaseemoong Independent Nations | Ontario, Canada | Community | |||
| Whitefish Bay | Lac Seul First Nation | Ontario, Canada | Community | Whitefish Bay | Kenora District | |
| Whitefish River First Nation | Manitoulin County | Ontario, Canada | City | Whitefish River First Nation | Manitoulin District | |
| Whitesand First Nation | Thunder Bay | Ontario, Canada | City | Whitesand First Nation | Thunder Bay District | |
| Whitewater Lake First Nation | Thunder Bay | Ontario, Canada | City | Whitewater Lake First Nation | Thunder Bay District | |
| Whitewater Region (Township) | Renfrew | Ontario, Canada | City | Whitewater | Renfrew County | |
| Wiarton | South Bruce Peninsula | Ontario, Canada | Community | Wiarton | South Bruce Peninsula | |
| Wikwemikong First Nation | Manitoulin County | Ontario, Canada | City | Wikwemikong | Manitoulin District | |
| Wilberforce | Highlands East | Ontario, Canada | Community | Wilberforce | Highlands East | |
| Williamsburg | South Dundas | Ontario, Canada | Community | Williamsburg | South Dundas | |
| Williamsford | Chatsworth | Ontario, Canada | Community | Williamsford | Chatsworth | |
| Williamstown | South Glengarry | Ontario, Canada | Community | Williamstown | South Glengarry | |
| Willow Beach | Georgina | Ontario, Canada | Community | Willow Beach | Georgina | |
| Wilmot | Waterloo County | Ontario, Canada | City | Wilmot Township | Waterloo Region | |
| Winchester | North Dundas | Ontario, Canada | Community | Winchester | North Dundas | |
| Windermere | Muskoka Lakes | Ontario, Canada | Community | Windermere | Muskoka Lakes Township | |
| Windham Centre | Norfolk | Ontario, Canada | Community | Windham Centre | Norfolk County | |
| Windsor | Essex | Ontario, Canada | City | Windsor | Essex County | |
| Wingham | North Huron | Ontario, Canada | Community | Wingham | North Huron | |
| Winterbourne | Woolwich | Ontario, Canada | Community | Winterbourne | Woolwich Township | |
| Wolfe Island | Frontenac Islands | Ontario, Canada | Community | Wolfe Island | Frontenac Islands | |
| Wollaston | Hastings County | Ontario, Canada | City | Wollaston | North Hastings | |
| Woodbridge | Vaughan | Ontario, Canada | Community | Woodbridge | Vaughan | |
| Woodstock | Oxford | Ontario, Canada | City | Woodstock | Oxford County | |
| Woodview | North Kawartha | Ontario, Canada | Community | Woodview | North Kawartha | |
| Woolwich | Waterloo County | Ontario, Canada | City | Woolwich Township | Waterloo Region | |
| Wunnumin Lake First Nation | Kenora County | Ontario, Canada | City | Wunnumin Lake First Nation | Kenora District | |
| Wyebridge | Tiny | Ontario, Canada | Community | Wyebridge | Tiny | |
| Wyevale | Tiny | Ontario, Canada | Community | Wyevale | Tiny | |
| Yarker | Stone Mills | Ontario, Canada | Community | Yarker | Stone Mills | |
| York | Toronto County | Ontario, Canada | Community | York | Toronto | |
| York | ON | Ontario, Canada | County | York Region | Greater Toronto Area | |
| Young's Point | Selwyn | Ontario, Canada | Community | Young's Point | Selwyn Township | |
| Zephyr | Uxbridge | Ontario, Canada | Community | Zephyr | Uxbridge (Township of) | |
| Zhiibaahaasing First Nation | Manitoulin County | Ontario, Canada | City | Zhiibaahaasing First Nation | Manitoulin District | |
| Zorra | Oxford | Ontario, Canada | City | Zorra | Oxford County | |
| Zurich | Bluewater | Ontario, Canada | Community | Zurich | Bluewater | |
| Asphodel-Norwood | Peterborough County | Ontario, Canada | City | Asphodel-Norwood | Peterborough (County of) | |
| Canada | Country | Canada | Country | Canada | North America | |
| ON | Canada | Province | Ontario, Canada | State | Ontario | Canada |
| Perth | Lanark | Ontario, Canada | City | Perth | Lanark County | |
| Brunswick House First Nation | Sudbury County | Ontario, Canada | City | Brunswick House First Nation | Sudbury District | |
| Temagami (Municipality of) | Nipissing County | Ontario, Canada | City | Temagami | Nipissing District | |
| Howe Island | Frontenac Islands | Ontario, Canada | Community | Howe Island | Frontenac Islands | |
| Ramara | Simcoe | Ontario, Canada | City | Ramara | Orillia and Area | |
| Clarence-Rockland | Prescott and Russell County | Ontario, Canada | City | Clarence-Rockland | Prescott and Russell United Counties | |
| Warkworth | Trent Hills | Ontario, Canada | Community | Warkworth | Trent Hills | |
| Warsaw | Douro-Dummer | Ontario, Canada | Community | Warsaw | Douro-Dummer | |
| Thunder Bay | ON | Ontario, Canada | County | Thunder Bay District | Northwestern Ontario | |
| Goulbourn | Ottawa | Ontario, Canada | Community | Goulbourn | Ottawa (City of) | |
| Mitchell | West Perth | Ontario, Canada | Community | Mitchell | West Perth | |
| Middleville | Lanark Highlands | Ontario, Canada | Community | Middleville | Lanark Highlands | |
| St Catharines | Niagara County | Ontario, Canada | City | St Catharines | Niagara Region | |
| Midhurst | Springwater | Ontario, Canada | Community | Midhurst | Springwater | |
| St Clair | Lambton | Ontario, Canada | City | St Clair | Lambton County | |
| Harrowsmith | South Frontenac | Ontario, Canada | Community | Harrowsmith | South Frontenac | |
| Hallowell | Prince Edward | Ontario, Canada | Community | Hallowell | Prince Edward County | |
| St Thomas | Elgin | Ontario, Canada | City | St Thomas | Elgin County | |
| Monkland | North Stormont | Ontario, Canada | Community | Monkland | North Stormont | |
| Lefaivre | Alfred and Plantagenet | Ontario, Canada | Community | Lefaivre | Alfred and Plantagenet | |
| Hammond | Clarence-Rockland | Ontario, Canada | Community | Hammond | Clarence-Rockland | |
| Stirling-Rawdon | Hastings County | Ontario, Canada | City | Stirling-Rawdon | Central Hastings | |
| Brinston | South Dundas | Ontario, Canada | Community | Brinston | South Dundas | |
| Stone Mills | Lennox and Addington | Ontario, Canada | City | Stone Mills | Lennox and Addington County | |
| Heidelberg | Wellesley | Ontario, Canada | Community | Heidelberg | Wellesley Township | |
| Murphy Corners | Wollaston | Ontario, Canada | Community | Mruphys Corners | Wollaston | |
| Holland Centre | Chatsworth | Ontario, Canada | Community | Holland Centre | Chatsworth | |
| Northbrook | Addington Highlands | Ontario, Canada | Community | Northbrook | Addington Highlands | |
| Strathroy-Caradoc | Middlesex | Ontario, Canada | City | Strathroy-Caradoc | Middlesex County | |
| Strong | Parry Sound County | Ontario, Canada | City | Strong | Parry Sound District | |
| Sundridge | Parry Sound County | Ontario, Canada | City | Sundridge | Parry Sound District | |
| Tarbutt | Algoma County | Ontario, Canada | City | Tarbutt | Algoma District | |
| Tay | Simcoe | Ontario, Canada | City | Tay | Simcoe North | |
| Gilford | Innisfil | Ontario, Canada | Community | Gilford | Innisfil | |
| Tay Valley | Lanark | Ontario, Canada | City | Tay Valley | Lanark County | |
| Hawkesbury | Prescott and Russell County | Ontario, Canada | City | Hawkesbury | Prescott and Russell United Counties | |
| Taykwa Tagamou Nation | Cochrane County | Ontario, Canada | City | Taykwa Tagamou First Nation | Cochrane District | |
| Plevna | North Frontenac | Ontario, Canada | Community | Plevna | North Frontenac | |
| Fort William First Nation | Thunder Bay | Ontario, Canada | City | Fort William First Nation | Thunder Bay District | |
| Gananoque | Leeds and Grenville County | Ontario, Canada | City | Gananoque | Leeds and Grenville United Counties | |
| Tecumseh | Essex | Ontario, Canada | City | Tecumseh | Essex County | |
| Tehkummah | Manitoulin County | Ontario, Canada | City | Tehkummah | Tehkummah Township | |
| Hampton | Clarington | Ontario, Canada | Community | Hampton | Clarington | |
| Couchiching First Nation | Rainy River | Ontario, Canada | City | Couchiching First Nation | Rainy River District | |
| East Gwillimbury | York | Ontario, Canada | City | East Gwillimbury | York Region | |
| Animbiigoo Zaagi'igan First Nation | Thunder Bay | Ontario, Canada | City | Animbiigoo Zaagi'igan Anishinaabek First Nation | Thunder Bay District | |
| Aundeck Omni Kaning First Nation | Manitoulin County | Ontario, Canada | City | Aundeck Omni Kaning First Nation | Manitoulin District | |
| Aweres | Algoma, Unorganized, North Part | Ontario, Canada | Community | Aweres Township | Algoma District | |
| Alton | Caledon | Ontario, Canada | Community | Alton (Caledon) | Caledon (Town of) | |
| Avonmore | North Stormont | Ontario, Canada | Community | Avonmore | North Stormont | |
| Vaughan | York | Ontario, Canada | City | Vaughan | York Region | |
| Algonquins of Pikwakanagan/Golden Lake First Nation | Renfrew | Ontario, Canada | City | Algonquins of Pikwàkanagàn First Nation | Renfrew County | |
| Arnprior | Renfrew | Ontario, Canada | City | Arnprior | Renfrew County | |
| Arran-Elderslie | Bruce | Ontario, Canada | City | Arran-Elderslie | Bruce County | |
| Cambridge | Waterloo County | Ontario, Canada | City | Cambridge | Waterloo Region | |
| Champlain | Prescott and Russell County | Ontario, Canada | City | Champlain | Prescott and Russell United Counties | |
| Golden Lake | North Algona Wilberforce | Ontario, Canada | Community | Golden Lake | North Algona-Wilberforce | |
| Green Valley | South Glengarry | Ontario, Canada | Community | Green Valley | South Glengarry | |
| Bay of Quinte Mohawk First Nation | Hastings County | Ontario, Canada | City | Tyendinaga Mohawk Territory | South Hastings | |
| Bensfort Bridge | Otonabee-South Monaghan | Ontario, Canada | Community | Bensfort Bridge | Otonabee-South Monaghan | |
| Rainy River | ON | Ontario, Canada | County | Rainy River District | Northwestern Ontario | |
| Coboconk | Kawartha Lakes | Ontario, Canada | Community | Coboconk | Kawartha Lakes | |
| Coe Hill | Wollaston | Ontario, Canada | Community | Coe Hill | Wollaston | |
| Coldwater | Severn | Ontario, Canada | Community | Coldwater | Severn | |
| Concord | Vaughan | Ontario, Canada | Community | Concord | Vaughan | |
| Conestogo | Woolwich | Ontario, Canada | Community | Conestogo | Woolwich Township | |
| Conn | Wellington North | Ontario, Canada | Community | Conn | Wellington North | |
| Cookstown | Innisfil | Ontario, Canada | Community | Cookstown | Innisfil | |
| Cobden | Whitewater Region (Township) | Ontario, Canada | Community | Cobden (Renfrew County) | Renfrew County | |
| Norfolk | ON | Ontario, Canada | County | Norfolk County | Southwestern Ontario | |
| Blezard Valley | Greater Sudbury | Ontario, Canada | Community | Blezard | Greater Sudbury | |
| Brunner | Perth East | Ontario, Canada | Community | Brunner | Perth East | |
| Perth | ON | Ontario, Canada | County | Perth County | Southwestern Ontario | |
| Gordon/Barrie Island | Manitoulin County | Ontario, Canada | City | Gordon/Barrie Island | Manitoulin District | |
| Hastings Highlands | Hastings County | Ontario, Canada | City | Hastings Highlands | North Hastings | |
| Bradford | Bradford West Gwillimbury | Ontario, Canada | Community | Bradford | Bradford West Gwillimbury | |
| Hartington | South Frontenac | Ontario, Canada | Community | Hartington | South Frontenac | |
| Huron-Kinloss | Bruce | Ontario, Canada | City | Huron-Kinloss | Bruce County | |
| Cat Lake First Nation | Kenora County | Ontario, Canada | City | Cat Lake First Nation | Kenora District | |
| Central Manitoulin | Manitoulin County | Ontario, Canada | City | Central Manitoulin | Manitoulin District | |
| Chapleau Cree First Nation | Sudbury County | Ontario, Canada | City | Chapleau Cree First Nation | Sudbury District | |
| Warwick | Lambton | Ontario, Canada | City | Warwick | Lambton County | |
| Webequie First Nation | Kenora County | Ontario, Canada | City | Webequie First Nation | Kenora District | |
| Kitchenuhmaykoosib Inninuwug/Big Trout Lake First Nation | Kenora County | Ontario, Canada | City | Kitchenuhmaykoosib Inninuwug First Nation | Kenora District | |
| Schreiber | Thunder Bay | Ontario, Canada | City | Schreiber | Thunder Bay District | |
| Bayham | Elgin | Ontario, Canada | City | Bayham | Elgin County | |
| Latchford | Timiskaming County | Ontario, Canada | City | Latchford | Timiskaming District | |
| Douro-Dummer | Peterborough County | Ontario, Canada | City | Douro-Dummer | Peterborough (County of) | |
| Mississauga | Peel County | Ontario, Canada | City | Mississauga | Peel Region | |
| Manilla | Kawartha Lakes | Ontario, Canada | Community | Manilla | Kawartha Lakes | |
| Woodville | Kawartha Lakes | Ontario, Canada | Community | Woodville | Kawartha Lakes | |
| Maple | Vaughan | Ontario, Canada | Community | Maple | Vaughan | |
| Mannheim | Wilmot | Ontario, Canada | Community | Mannheim | Wilmot Township | |
| Wooler | Quinte West | Ontario, Canada | Community | Wooler | Quinte West | |
| Blandford-Blenheim | Oxford | Ontario, Canada | City | Blandford-Blenheim | Oxford County | |
| Bluewater | Huron County | Ontario, Canada | City | Bluewater | Huron County | |
| Caistor Centre | West Lincoln | Ontario, Canada | Community | Caistor Centre | West Lincoln | |
| Carrying Place | Prince Edward | Ontario, Canada | Community | Carrying Place | Prince Edward County | |
| Cavan | Cavan Monaghan | Ontario, Canada | Community | Cavan | Cavan Monaghan | |
| Bonfield | Nipissing County | Ontario, Canada | City | Bonfield | Nipissing District | |
| Dysart, Dudley, Harcourt, Guilford, Harburn, Bruton, Havelock, Eyre and Clyde | Haliburton | Ontario, Canada | City | Dysart | Haliburton County | |
| Berwick | North Stormont | Ontario, Canada | Community | Berwick | North Stormont | |
| East Ferris | Nipissing County | Ontario, Canada | City | East Ferris Township | Nipissing District | |
| Mattice-Val Côté | Cochrane County | Ontario, Canada | City | Mattice-Val Côté Township | Cochrane District | |
| Russell | Prescott and Russell County | Ontario, Canada | City | Russell | Prescott and Russell United Counties | |
| Wellington | Prince Edward | Ontario, Canada | Community | Wellington | Prince Edward County | |
| Cloyne | Addington Highlands | Ontario, Canada | Community | Cloyne | Addington Highlands | |
| Morris-Turnberry | Huron County | Ontario, Canada | City | Morris-Turnberry | Huron County | |
| Burford | Brant | Ontario, Canada | Community | Burford | Brant County | |
| Finch | North Stormont | Ontario, Canada | Community | Finch | North Stormont | |
| Whitestone | Parry Sound County | Ontario, Canada | City | Whitestone | Parry Sound District | |
| Springwater | Simcoe | Ontario, Canada | City | Springwater | Simcoe North | |
| Long Beach | Wainfleet | Ontario, Canada | Community | Long Beach | Wainfleet | |
| Cayuga | Haldimand | Ontario, Canada | Community | Cayuga | Haldimand County | |
| Bonnechere Valley | Renfrew | Ontario, Canada | City | Bonnechere Valley | Renfrew County | |
| Lochiel | North Glengarry | Ontario, Canada | Community | Lochiel | North Glengarry | |
| Nibinamik First Nation | Kenora County | Ontario, Canada | City | Nibinamik First Nation | Kenora District | |
| Alderville First Nation | Northumberland | Ontario, Canada | City | Alderville First Nation | Northumberland County | |
| Morriston | Puslinch | Ontario, Canada | Community | Morriston | Puslinch | |
| Northwest Territories | Canada | Territory | Northern Territories, Canada | State | Northwest Territories | Canada |
| Newfoundland and Labrador | Canada | Province | Newfoundland and Labrador, Canada | State | Newfoundland and Labrador | Atlantic Canada |
| Manitoba | Canada | Province | Manitoba, Canada | State | Manitoba | Canada |
| New Brunswick | Canada | Province | New Brunswick, Canada | State | New Brunswick | Atlantic Canada |
| Alberta | Canada | Province | Alberta, Canada | State | Alberta | Canada |
| British Columbia | Canada | Province | British Columbia, Canada | State | British Columbia | Canada |
| Quebec | Canada | Province | Quebec, Canada | State | Québec | Canada |
| Prince Edward Island | Canada | Province | Prince Edward Island, Canada | State | Prince Edward Island | Atlantic Canada |
| Yukon | Canada | Territory | Yukon, Canada | State | Yukon Territory | Canada |
| Nunavut | Canada | Territory | Nunavut, Canada | State | Nunavut | Canada |
| Nova Scotia | Canada | Province | Nova Scotia, Canada | State | Nova Scotia | Atlantic Canada |
| Saskatchewan | Canada | Province | Saskatchewan, Canada | State | Saskatchewan | Canada |
| Foleyet | Sudbury, Unorganized, North Part | Ontario, Canada | Community | Foleyet Township | Sudbury District | |
| Hamilton | Hamilton County | Ontario, Canada | City | Hamilton | Hamilton (City of) | |
| Northumberland | ON | Ontario, Canada | County | Northumberland County | Central Ontario | |
| Greenwood | Pickering | Ontario, Canada | Community | Greenwood | Pickering | |
| Halloway | Quinte West | Ontario, Canada | Community | Halloway | Quinte West | |
| Bethel | Elizabethtown-Kitley | Ontario, Canada | Community | Bethel | Elizabethtown-Kitley | |
| Oxford | ON | Ontario, Canada | County | Oxford County | Southwestern Ontario | |
| Lac Des Mille Lacs First Nation | Thunder Bay | Ontario, Canada | City | Lac des Mille Lacs First Nation | Thunder Bay District | |
| Lac Seul First Nation | Kenora County | Ontario, Canada | City | Lac Seul | Kenora District | |
| Lake of Bays | Muskoka County | Ontario, Canada | City | Lake of Bays Township | Muskoka District | |
| Bethany | Kawartha Lakes | Ontario, Canada | Community | Bethany | Kawartha Lakes | |
| Wasauksing First Nation | Parry Sound County | Ontario, Canada | City | Wasauksing First Nation | Parry Sound District | |
| Lakeshore | Essex | Ontario, Canada | City | Lakeshore | Essex County | |
| Elizabethtown-Kitley | Leeds and Grenville County | Ontario, Canada | City | Elizabethtown-Kitley | Leeds and Grenville United Counties | |
| Indian River | Otonabee-South Monaghan | Ontario, Canada | Community | Indian River | Otonabee-South Monaghan | |
| Vineland Station | Lincoln | Ontario, Canada | Community | Vineland Station | Lincoln | |
| Nepean | Ottawa | Ontario, Canada | Community | Nepean | Ottawa (City of) | |
| Virgil | Niagara-On-The-Lake | Ontario, Canada | Community | Virgil | Niagara-on-the-Lake | |
| Englehart | Timiskaming County | Ontario, Canada | City | Englehart | Timiskaming District | |
| Picton | Prince Edward | Ontario, Canada | Community | Picton | Prince Edward County | |
| Piccadilly | Central Frontenac | Ontario, Canada | Community | Piccadilly | Central Frontenac | |
| Philipsville | Rideau Lakes | Ontario, Canada | Community | Philipsville | Rideau Lakes | |
| Garden River First Nation | Algoma County | Ontario, Canada | City | Garden River First Nation | Algoma District | |
| Georgian Bay | Muskoka County | Ontario, Canada | City | Georgian Bay Township | Muskoka District | |
| Gads Hill | Perth East | Ontario, Canada | Community | Gads Hill | Perth East | |
| Lanark Highlands | Lanark | Ontario, Canada | City | Lanark Highlands | Lanark County | |
| Walden | Greater Sudbury | Ontario, Canada | Community | Walden | Greater Sudbury | |
| Havelock-Belmont-Methuen | Peterborough County | Ontario, Canada | City | Havelock-Belmont-Methuen | Peterborough (County of) | |
| New Dundee | Wilmot | Ontario, Canada | Community | New Dundee | Wilmot Township | |
| Larder Lake | Timiskaming County | Ontario, Canada | City | Larder Lake | Timiskaming District | |
| LaSalle | Essex | Ontario, Canada | City | LaSalle | Essex County | |
| Parry Sound County | ON | County | Ontario, Canada | County | Parry Sound District | Northeastern Ontario |
| Seguin | Parry Sound County | Ontario, Canada | City | Seguin | Parry Sound District | |
| South River | Parry Sound County | Ontario, Canada | City | South River | Parry Sound District | |
| Seine River First Nation | Rainy River | Ontario, Canada | City | Seine River | Fort Frances | |
| Selwyn | Peterborough County | Ontario, Canada | City | Selwyn Township | Peterborough (County of) | |
| McMurrich/Monteith | Parry Sound County | Ontario, Canada | City | McMurrich-Monteith | Parry Sound District | |
| Serpent River First Nation | Algoma County | Ontario, Canada | City | Serpent River First Nation | Algoma District | |
| Sioux Narrows-Nestor Falls | Kenora County | Ontario, Canada | City | |||
| Six Nations of the Grand River | Brant County | Ontario, Canada | City | Six Nations of the Grand River | Brant County | |
| Stockdale | Quinte West | Ontario, Canada | Community | Stockdale | Quinte West | |
| Slate Falls First Nation | Kenora County | Ontario, Canada | City | Slate Falls First Nation | Kenora District | |
| Smooth Rock Falls | Cochrane County | Ontario, Canada | City | Smooth Rock Falls | Cochrane District | |
| South Algonquin | Nipissing County | Ontario, Canada | City | South Algonquin Township | Nipissing District | |
| South Bruce | Bruce | Ontario, Canada | City | South Bruce | Bruce County | |
| South Bruce Peninsula | Bruce | Ontario, Canada | City | South Bruce Peninsula | Bruce County | |
| Scugog | Durham County | Ontario, Canada | City | Scugog | Durham Region | |
| Aamjiwnaang/Chippewas of Sarnia First Nation | Lambton | Ontario, Canada | City | Aamjiwnaang First Nation | Lambton County | |
| South Glengarry | Stormont, Dundas and Glengarry County | Ontario, Canada | City | South Glengarry | Stormont, Dundas and Glengarry United Counties | |
| Westmeath | Whitewater Region (Township) | Ontario, Canada | Community | Westmeath | Renfrew County | |
| Whitney | South Algonquin | Ontario, Canada | Community | Whitney | South Algonquin Township | |
| Fenelon Falls | Kawartha Lakes | Ontario, Canada | Community | Fenelon Falls | Kawartha Lakes | |
| South Huron | Huron County | Ontario, Canada | City | South Huron | Huron County | |
| South Stormont | Stormont, Dundas and Glengarry County | Ontario, Canada | City | South Stormont | Stormont, Dundas and Glengarry United Counties | |
| Etobicoke | Toronto County | Ontario, Canada | Community | Etobicoke | Toronto | |
| Southwest Middlesex | Middlesex | Ontario, Canada | City | Southwest Middlesex | Middlesex County | |
| Innisfil | Simcoe | Ontario, Canada | City | Innisfil | South Simcoe | |
| Osgoode | Ottawa | Ontario, Canada | Community | Osgoode | Ottawa (City of) | |
| Joly | Parry Sound County | Ontario, Canada | City | Joly | Parry Sound District | |
| South-West Oxford | Oxford | Ontario, Canada | City | South-West Oxford | Oxford County | |
| Laird | Algoma County | Ontario, Canada | City | Laird Township | Echo Bay | |
| Southwold | Elgin | Ontario, Canada | City | Southwold | Elgin County | |
| Dokis First Nation | Parry Sound County | Ontario, Canada | City | Dokis First Nation | Parry Sound District | |
| Prince Edward | Prince Edward County | Ontario, Canada | City | Prince Edward County | Eastern Ontario | |
| Mississaugas of the Credit First Nation | Brant County | Ontario, Canada | City | Mississaugas of the Credit First Nation | Brant County | |
| Mississauga's of Scugog Island First Nation | Durham County | Ontario, Canada | City | |||
| Mississippi Mills | Lanark | Ontario, Canada | City | Mississippi Mills | Lanark County | |
| Mitaanjigamiing First Nation | Rainy River | Ontario, Canada | City | |||
| Mono | Dufferin County | Ontario, Canada | City | Mono | Dufferin County | |
| Montague | Lanark | Ontario, Canada | City | Montague | Lanark County | |
| Moonbeam | Cochrane County | Ontario, Canada | City | Moonbeam | Fauquier Township | |
| Moose Cree First Nation | Cochrane County | Ontario, Canada | City | Moose Cree First Nation | Cochrane District | |
| Moose Deer Point First Nation | Muskoka County | Ontario, Canada | City | Moose Deer Point First Nation | Muskoka District | |
| Moose Factory | Cochrane, Unorganized, North Part | Ontario, Canada | Community | Moose Factory | Factory Island | |
| Moosonee | Cochrane County | Ontario, Canada | City | Moosonee | Cochrane District | |
| Moravian of the Thames First Nation | Chatham-Kent County | Ontario, Canada | City | Moravian Town First Nation | Chatham-Kent | |
| Morley | Rainy River | Ontario, Canada | City | Morley Township | Rainy River District | |
| Searchmont | Algoma, Unorganized, North Part | Ontario, Canada | Community | Searchmont | Algoma District | |
| Spanish | Algoma County | Ontario, Canada | City | Spanish | Algoma District | |
| Peel County | ON | County | Ontario, Canada | County | Peel Region | Greater Toronto Area |
| Palmerston | Minto | Ontario, Canada | Community | Palmerston | Minto | |
| Parham | Central Frontenac | Ontario, Canada | Community | Parham | Central Frontenac | |
| Peterborough County | ON | County | Ontario, Canada | County | Peterborough (County of) | Central Ontario |
| M'Chigeeng First Nation | Manitoulin County | Ontario, Canada | City | M'Chigeeng First Nation | Manitoulin District | |
| Michipicoten First Nation | Algoma County | Ontario, Canada | City | Michipicoten First Nation | Algoma District | |
| Milton | Halton County | Ontario, Canada | City | Milton | Halton North | |
| Mishkeegogamang First Nation | Kenora County | Ontario, Canada | City | Mishkeegogamang First Nation | Kenora District | |
| Missanabie | Algoma, Unorganized, North Part | Ontario, Canada | Community | Missanabie | Algoma District | |
| McDougall | Parry Sound County | Ontario, Canada | City | McDougall | Parry Sound District | |
| South Dundas | Stormont, Dundas and Glengarry County | Ontario, Canada | City | South Dundas | Stormont, Dundas and Glengarry United Counties | |
| Egbert | Essa | Ontario, Canada | Community | Egbert | Essa | |
| Elmvale | Springwater | Ontario, Canada | Community | Elmvale | Springwater | |
| Missanabie Cree First Nation | Algoma County | Ontario, Canada | City | Missanabie Cree First Nation | Algoma District | |
| Middlesex Centre | Middlesex | Ontario, Canada | City | Middlesex Centre | Middlesex County | |
| Jocelyn | Algoma County | Ontario, Canada | City | Jocelyn | Jocelyn Township | |
| Kapuskasing | Cochrane County | Ontario, Canada | City | Kapuskasing | Cochrane District | |
| Kasabonika Lake First Nation | Kenora County | Ontario, Canada | City | Kasabonika Lake First Nation | Kenora District | |
| Malahide | Elgin | Ontario, Canada | City | Malahide | Elgin County | |
| Stoney Creek | Hamilton | Ontario, Canada | Community | Stoney Creek | Hamilton (City of) |