Template:Former federal ridings in Ontario

v t e Historical federal ridings in Ontario
Until 2015	Ajax—Pickering Ancaster—Dundas—Flamborough—Westdale Barrie Bramalea—Gore—Malton Brampton—Springdale Brant Carleton—Mississippi Mills Chatham-Kent—Essex Halton Kitchener—Waterloo Lanark—Frontenac—Lennox and Addington Leeds—Grenville Mississauga—Brampton South Mississauga—Erindale Mississauga South Nepean—Carleton Niagara West—Glanbrook Northumberland—Quinte West Oak Ridges—Markham Ottawa—Orléans Peterborough Pickering—Scarborough East Prince Edward—Hastings St. Paul's Scarborough—Rouge River Trinity—Spadina Vaughan Welland Whitby—Oshawa York West
Until 2006	Clarington—Scugog—Uxbridge Grey—Bruce—Owen Sound Middlesex—Kent—Lambton
Until 2004	Algoma—Manitoulin Ancaster—Dundas—Flamborough—Aldershot Barrie—Simcoe—Bradford Bramalea—Gore—Malton—Springdale Brampton Centre Brampton West—Mississauga Bruce—Grey Carleton—Lanark Dufferin—Peel—Wellington—Grey Durham Erie—Lincoln Guelph—Wellington Haldimand—Norfolk—Brant Haliburton—Victoria—Brock Hamilton East Hamilton West Hastings—Frontenac—Lennox and Addington Kenora—Rainy River Lambton—Kent—Middlesex Markham Mississauga Centre Mississauga East Mississauga West Niagara Centre Nipissing Northumberland Oak Ridges Perth—Middlesex Pickering—Ajax—Uxbridge Scarborough East Stoney Creek Stormont—Dundas—Charlotenburgh Thunder Bay—Atikokan Timiskaming—Cochrane Toronto Centre—Rosedale Vaughan—King—Aurora Waterloo—Wellington Whitby—Ajax Windsor—St. Clair York North
Until 2000	Bramalea—Gore—Malton Broadview—Greenwood Carleton—Gloucester Kent—Essex London—Adelaide Stormont—Dundas Victoria—Haliburton Wentworth—Burlington
Until 1997	Algoma Beaches—East York (federal electoral district)Beaches—Woodbine Brampton Cochrane—Superior Don Valley North Elgin—Norfolk Erie Essex—Kent Essex—Windsor Haldimand—Norfolk Halton—Peel Hamilton—Wentworth Kent Kitchener Lambton—Middlesex Lincoln London East London—Middlesex Markham—Whitchurch-Stouffville Nepean Oakville—Milton Ontario Ottawa West Perth—Wellington—Waterloo Rosedale Scarborough West Simcoe Centre Thunder Bay—Nipigon Timiskaming—French River Timmins—Chapleau Waterloo Welland—St. Catharines—Thorold Wellington—Grey—Dufferin—Simcoe York—Simcoe
Until 1993	Brampton—Malton Elgin Markham \|Renfrew Timiskaming Windsor—Lake St. Clair
Until 1988	Beaches Brampton—Georgetown Durham—Northumberland Grey—Simcoe Guelph Halton Lanark—Renfrew—Carleton Mississauga North Nepean—Carleton Ottawa—Carleton Perth (federal electoral district)\|Renfrew—Nipissing—Pembroke Simcoe South Spadina Trinity Welland Wellington—Dufferin—Simcoe Windsor—Walkerville York East York—Peel York—Scarborough
Until 1984	Cochrane Hastings—Frontenac Sarnia
Until 1979	Broadview Bruce Don Valley Eglinton Etobicoke Fort William Frontenac—Lennox and Addington Greenwood Grenville—Carleton Halton—Wentworth Hastings High Park—Humber Valley Huron—Middlesex Kent—Essex Lambton—Kent Leeds Middlesex—London—Lambton Mississauga Norfolk—Haldimand Northumberland—Durham Oshawa—Whitby Parkdale Peel—Dufferin—Simcoe Perth—Wilmot Port Arthur Renfrew North—Nipissing East Sarnia—Lambton Thunder Bay Timmins Toronto—Lakeshore Waterloo—Cambridge Wellington Wellington—Grey—Dufferin—Waterloo York—Simcoe York South
Until 1974	Huron Middlesex Ottawa East Peel South Waterloo
Until 1972	Essex Glengarry—Prescott High Park Lakeshore Lanark and Renfrew Perth Renfrew North Sarnia Wellington—Grey
Until 1968	Algoma East Algoma West Brant—Haldimand Brantford Carleton Danforth Dufferin—Simcoe Durham Essex East Essex South Essex West Grenville—Dundas Grey—Bruce Grey North Hamilton South Hastings—Frontenac Hastings South Kent Kingston Lambton West Lanark London Middlesex East Middlesex West Norfolk Northumberland Peel Prince Edward—Lennox Renfrew South Russell Simcoe East Stormont Victoria Waterloo North Waterloo South Wellington—Huron Wellington South Wentworth York—Humber
Until 1953	Brant—Wentworth Frontenac—Addington Glengarry Haldimand Hastings—Peterborough Huron North Huron—Perth Kingston City Peterborough West Prescott Wellington North
Until 1949	Brant Brantford City Muskoka—Ontario Parry Sound
Until 1935	Bruce North Bruce South Elgin West Grey Southeast Huron South Lambton East Norfolk—Elgin City of Ottawa Oxford North Oxford South Perth North Perth South Port Arthur—Thunder Bay Timiskaming North Timiskaming South Toronto East Toronto East Centre Toronto—High Park Toronto Northeast Toronto Northwest Toronto—Scarborough Toronto South Toronto West Centre
Until 1925	Brantford Dufferin Dundas Elgin East Essex North Fort William and Rainy River Frontenac Glengarry and Stormont Grenville Hastings East Hastings West Kingston Lennox and Addington Muskoka Norfolk North Oxford Ontario North Ontario South Peterborough East Port Arthur and Kenora Prince Edward Simcoe South South Oxford Timiskaming Toronto Centre Toronto North Toronto West York East
Until 1917	Brockville Glengarry Grey East Grey South Huron East Huron West Kent East Kent West Lanark North Lanark South Middlesex North Northumberland East Northumberland West Stormont Thunder Bay and Rainy River York Centre
Until 1904	Addington Algoma Bothwell Brant South Bruce East Bruce West Cardwell Centre Toronto Cornwall and Stormont Durham East Durham West East York Grenville South Haldimand and Monck Hamilton Hastings North Kent Leeds North and Grenville North Leeds South Lennox Lincoln and Niagara Middlesex South Muskoka and Parry Sound Norfolk North Norfolk South Ontario West Victoria North Victoria South Wellington Centre Wentworth North and Brant Wentworth South West Toronto York West
Until 1896	Brant North Haldimand Monck Wentworth North
Until 1882	Bruce South Cornwall Essex Huron Centre Huron North Lambton Lincoln Muskoka Niagara Stormont

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