This is a list of electoral districts or ridings in Canada for the Canadian federal election of 1949 In 1947, there was 10 new districts created, but Newfoundland became a province in 1949 adding 7 new districts. There were no elections held between 1947 and 1949, and there were no by-elections held in Newfoundland after joining confederation.

Electoral Districts are constituencies that elect Members of Parliament in Canada's House of Commons every election.

Newfoundland

• Bonavista—Twillingate
• Burin—Burgeo
• Grand Falls—White Bay
• Humber—St. George's
• St. John's East
• St. John's West
• Trinity—Conception

Nova Scotia

• Annapolis—Kings
• Antigonish—Guysborough
• Cape Breton North and Victoria
• Cape Breton South
• Colchester—Hants
• Cumberland
• Digby—Yarmouth
• Halifax*
• Inverness—Richmond
• Lunenburg
• Pictou
• Queens—Shelburne

Prince Edward Island

• King's
• Prince
• Queen's *

New Brunswick

• Charlotte
• Gloucester
• Kent
• Northumberland
• Restigouche—Madawaska
• Royal
• St. John—Albert
• Victoria—Carleton
• Westmorland
• York—Sunbury

Quebec

• Argenteuil—Duex-Montagnes
• Beauce
• Beauharnois
• Bellechasse
• Berthier—Maskinongé
• Bonaventure
• Brome—Missisquoi
• Cartier
• Chambly—Rouville
• Champlain
• Chapleau
• Charlevoix
• Châteauguay—Huntingdon—Laprairie
• Chicoutimi
• Compton—Frotenac
• Dorchester
• Drummond—Arthabaska
• Gaspé
• Gatineau
• Hochelaga
• Hull
• Îles-de-la-Madeleine
• Jacques Cartier
• Joliette—L'Assomption—Montcalm
• Kamouraska
• Labelle
• Lac-Saint-Jean
• Lafontaine
• Lapointe
• Laurier
• Laval
• Lévis
• Lotbinière
• Maisonneuve—Rosemount
• Matapédia—Matane
• Mégantic
• Mercier
• Montmagny—L'Islet
• Mount Royal
• Nicolet—Yamaska
• Notre-Dame-de-Grâce
• Outremont—St-Jean
• Papineau
• Pontiac—Témiscamingue
• Portneuf
• Quebec East
• Quebec South
• Quebec West
• Québec—Montmorency
• Richelieu—Verchères
• Richmond—Wolfe
• Rimouski
• Roberval
• Saguenay
• Saint-Hyacinthe—Bagot
• Saint-Jean—Iberville—Napierville
• Saint-Maurice—Laflèche
• Shefford
• Sherbrooke
• St-Denis
• St-Henri
• St. Ann
• St. Antoine—Westmount
• St. James
• St. Lawrence—St. George
• St. Mary
• Stanstead
• Témiscouata
• Terrebonne
• Trois-Rivières
• Vaudreuil—Soulanges
• Verdun—La Salle
• Villeneuve

Ontario

• Algoma East
• Algoma West
• Brant—Wentworth
• Brantford
• Broadview
• Bruce
• Carleton
• Cochrane
• Danforth
• Davenport
• Dufferin—Simcoe
• Durham
• Eglinton
• Elgin
• Essex East
• Essex South
• Essex West
• Fort William
• Frontenac—Addington
• Glengarry
• Greenwood
• Grenville—Dundas
• Grey North
• Grey—Bruce
• Haldimand
• Halton
• Hamilton East
• Hamilton West
• Hastings South
• Hastings—Peterborough
• High Park
• Huron North
• Huron—Perth
• Kenora—Rainy River
• Kent
• Kingston City
• Lambton West
• Lambton—Kent
• Lanark
• Leeds
• Lincoln
• London
• Middlesex East
• Middlesex West
• Nipissing
• Norfolk
• Northumberland
• Ontario
• Ottawa East
• Ottawa West
• Oxford
• Parkdale
• Parry Sound—Muskoka
• Peel
• Perth
• Peterborough West
• Port Arthur
• Prescott
• Prince Edward—Lennox
• Renfrew North
• Renfrew South
• Rosedale
• Russell
• Simcoe East
• Simcoe North
• Spadina
• St. Paul's
• Stormont
• Sudbury
• Timiskaming
• Timmins
• Trinity
• Victoria
• Waterloo North
• Waterloo South
• Welland
• Wellington North
• Wellington South
• Wentworth
• York East
• York North
• York South
• York West

Manitoba

• Brandon
• Churchill
• Dauphin
• Lisgar
• Marquette
• Norquay
• Portage—Neepawa
• Provencher
• Selkirk
• Souris
• Springfield
• St. Boniface
• Winnipeg North
• Winnipeg North Centre
• Winnipeg South
• Winnipeg South Centre

Saskatchewan

• Assiniboia
• Humboldt
• Kindersley
• Lake Centre
• Mackenzie
• Maple Creek
• Meadow Lake
• Melfort
• Melville
• Moose Jaw
• Moose Mountain
• Prince Albert
• Qu'Appelle
• Regina City
• Rosetown—Biggar
• Rosthern
• Saskatoon
• Swift Current
• The Battlefords
• Yorkton

Alberta

• Acadia
• Athabaska
• Battle River
• Bow River
• Calgary East
• Calgary West
• Camrose
• Edmonton East
• Edmonton West
• Jasper—Edson
• Lethbridge
• Macleod
• Medicine Hat
• Peace River
• Red Deer
• Vegreville
• Wetaskiwin

British Columbia

• Burnaby—Richmond
• Cariboo
• Coast-Capilano
• Comox—Alberni
• Fraser Valley
• Kamloops
• Kootenay East
• Kootenay West
• Nanaimo
• New Westminster
• Skeena
• Vancouver Centre
• Vancouver East
• Vancouver Quadra
• Vancouver South
• Vancouver—Burrard
• Victoria
• Yale

Yukon/Northwest Territories

• Yukon—Mackenzie River

*returned two members