Les élections fédérales canadiennes de 2011 en Ontario voient le Parti conservateur remporter 73 sièges, soit 22 de plus qu'en 2008. Le bon score des conservateurs en Ontario leur permet d'obtenir une majorité absolue à la Chambre des communes.

Le NPD effectue une percée avec 22 sièges (+5) et passe devant les libéraux (11 sièges, -27).

Résultats provinciaux PartiConservateur Sièges :73 Voix :44,4 NPD Sièges :22 Voix :25,6 Libéral Sièges :11 Voix :25,3 Vert Sièges :- Voix3,8

Résultats par circonscription Ottawa CirconscriptionCandidats Député sortant Conservateur Libéral NPD Vert AutreCarleton—Mississippi MillsGordon O'Connor 43,723Karen McCrimmon 18,293Erin Peters 11,223John Hogg 3,434 Gordon O'ConnorNepean—CarletonPierre Poilievre 43,477Ryan Keon 20,146Ric Dagenais 12,962Jean-Luc Cooke 3,260 Pierre PoilievreOttawa-CentreDamian Konstantinakos 14,063Scott Bradley 13,049Paul Dewar 33,805Jennifer Hunter 3,262John Akpata (Mar.) 326 Pierre Soubilère (M-L) 44 Stuart Ryan (Comm.) 109 Romeo Bellai (Ind.) 210Paul DewarOttawa—OrléansRoyal Galipeau 28,584David Bertschi 24,649Martine Cenatus 9,086Paul Maillet 1,836 Royal GalipeauOttawa-SudElie Salibi 19,634David McGuinty 25,963James McLaren 10,712Mick Kitor 1,787Al Gullon (PC) 513 Mike Bleskie (Pirate) 382David McGuintyOttawa—VanierRem Westland 14,184Mauril Bélanger 20,009Trevor Haché 15,391Caroline Rioux 2,716Christian Legeais (M-L) 122Mauril BélangerOttawa-Ouest—NepeanJohn Baird 25,226Anita Vandenbeld 17,790Marlene Rivier 11,128Mark Mackenzie 2,279John Baird

Est de l'Ontario CirconscriptionCandidats Député sortant Conservateur Libéral NPD Vert AutreGlengarry—Prescott—RussellPierre Lemieux 28,174Julie Bourgeois 17,698Denis Séguin 9,613Sylvie Lemieux 2,055Jean-Serge Brisson (Libert.) 194Pierre LemieuxKingston et les ÎlesAlicia Gordon21,189Ted Hsu23,842Daniel Beals13,065Eric Walton2,561Peter Milliken†Lanark—Frontenac—Lennox and AddingtonScott Reid 33,754David Remington 9,940Doug Smyth 12,174John Baranyi 2,702Ralph Lee (Ind.) 370Scott ReidLeeds—GrenvilleGord Brown 29,991Marjory Loveys 7,839Matthew Gabriel 9,033Mary Slade 2,460Gord BrownPrince Edward—HastingsDaryl Kramp 29,062Peter Tinsley 10,230Michael McMahon 12,940Patrick Larkin 1,887Tim Hickey (Ind.) 283 Andrew Skinner (PC) 171Daryl KrampRenfrew—Nipissing—PembrokeCheryl Gallant 27,462Christine Tabbert 6,545Eric Burton 6,903Rosanne Van Schie 877Hec Clouthier (Ind.) 9,611Cheryl GallantStormont—Dundas—South GlengarryGuy Lauzon 29,538Bernadette Clement 8,510Mario Leclerc 8,313Wyatt Joseph Walsh 1,038Darcy Neal Donnelly (Libert.) 151Guy Lauzon

Centre de l'Ontario CirconscriptionCandidats Député sortant Conservateur Libéral NPD Vert Autre BarriePatrick Brown 32,121Colin Wilson 9,113Myrna Clark 11,842Erich Jacoby-Hawkins 3,266Jeff Sakula (PAC) 77Darren Roskam (Libert.) 150Christine Nugent (CPC-ML) 82Patrick BrownBruce—Grey—Owen SoundLarry Miller 28,744Kimberly Love 8,203Karen Gventer 9,008Emma Jane Hogbin 5,099Larry MillerDufferin—CaledonDavid Tilson 28,647Bill Prout 6,361Leslie Parsons 6,409Ard Van Leeuwen 7,132David TilsonDurhamBev Oda 31,737Grant Humes 10,387Tammy Schoep 12,277Stephen Leahy 3,134Andrew Moriarty (PHC) 462 Blaize Barnicoat (Libert.) 187Bev OdaHaliburton—Kawartha Lakes—BrockBarry Devolin 35,192Laura Redman 7,539Lyn Edwards 12,934Susanne Lauten 2,963Barry DevolinNewmarket—AuroraLois Brown 31,600Kyle Peterson 13,908Kassandra Bidarian 8,886Vanessa Long 2,628Dorian Baxter (PC) 998Yvonne Mackie (AA) 182Lois BrownNorthumberland—Quinte WestRick Norlock 32,853Kim Rudd 12,822Russ Christianson 12,626Ralph Torrie 2,733Rick NorlockPeterboroughDean Del Mastro 29,393Betsy McGregor 12,664Dave Nickle 14,723Michael Bell 2,105Michael Bates (PAC) 104Gordon Scott (Ind.) 189Dean Del MastroSimcoe—GreyKellie Leitch 31,784Alex Smardenka 8,207Katy Austin 11,185Jace Metheral 3,482Helena Guergis (Ind.) 8,714Gord Cochrane (PAC) 244 - Peter Vander Zaag (PHC)757 -Helena GuergisSimcoe-NordBruce Stanton 31,581Steve Clarke 11,090Richard Banigan 11,515Valerie Powell 3,489Adrian Kooger (PHC) 322Bruce StantonYork—SimcoePeter Van Loan 33,614Cynthia Wesley-Esquimaux 5,702Sylvia Gerl 10,190John Dewar 2,851Paul Pisani (United) 157Vicki Gunn (PHC) 352Peter Van Loan

Sud de Durham et York CirconscriptionCandidats Député sortant Conservateur Libéral NPD Vert AutreAjax—PickeringChris Alexander 24,797Mark Holland 21,569Jim Koppens 8,270Mike Harilaid 1,561Bob Kesic (UPC) 71Mark HollandMarkham—UnionvilleBob Saroya 17,732John McCallum 19,429Nadine Hawkins 10,897Adam Poon 1,597Allen Small (Libert.) 231John McCallumOak Ridges—MarkhamPaul Calandra 46,241Lui Temelkovski 25,561Janice Hagan 15,229Trifon Haitas 2,349John Siciliano (PC) 1,080Paul CalandraOshawaColin Carrie 26,034James Morton 3,536Chris Buckley 19,212Gail Bates 1,631Matthew Belanger (Libert.) 260 David Gershuny (CPC-ML) 61Colin CarriePickering—Scarborough-EstCorneliu Chisu 19,220Dan McTeague 18,013Andrea Moffat 8,932Kevin Smith 1,751Dan McTeagueRichmond HillCostas Menegakis 22,078Bryon Wilfert 17,671Adam DeVita 8,433Cameron Hastings 1,832Bryon WilfertThornhillPeter Kent 36,629Karen Mock 14,125Simon Strelchik 7,141Norbert Koehl 1,562Liz White (Animal All.) 215Peter KentVaughanJulian Fantino 38,533Mario Ferri 20,435Mark Pratt 7,940Claudia Rodriguez-Larrain 1,515Julian FantinoWhitby—OshawaJim Flaherty 37,525Trevor Bardens 9,066Trish McAuliffe 14,305Rebecca Harrison 3,143Josh Insang (Libert.) 198Jim Flaherty

Banlieue de Toronto CirconscriptionCandidats Député sortant Conservateur Libéral NPD Vert AutreDon Valley-EstJoe Daniel 14,421Yasmin Ratansi 13,552Mary Trapani Hynes 9,878Akil Sadikali 1,207Ryan Kidd 246Yasmin RatansiEtobicoke-CentreTed Opitz 21,644Borys Wrzesnewskyj 21,618Ana Maria Rivero 7,735Katarina Zoricic 1,377Sarah Thompson (M-L) 149Borys WrzesnewskyjEtobicoke—LakeshoreBernard Trottier 21,963Michael Ignatieff 19,058Michael Erickson 10,979Dave Corail 2,151Janice Murray (CPC-ML) 191Michael IgnatieffEtobicoke-NordPriti Lamba 10,395Kirsty Duncan 13,652Diana Andrews 7,625—Anna Di Carlo (M-L)189 John C. Gardner (C-H)185Kirsty DuncanScarborough—AgincourtHarry Tsia 13,930Jim Karygiannis 18,497Nancy Patchell 7,736Pauline Thompson 946Jim KarygiannisScarborough-CentreRoxanne James 13,401John Cannis 12,075Natalie Hundt 11,273Ella Ng 994John CannisScarborough—GuildwoodChuck Konkel 13,178John McKay 13,778Danielle Ouellette 10,146Alonzo Bartley 848Paul Coulbeck (Ind.) 259John McKayScarborough—Rouge RiverMarlene Gallyot 13,893Rana Sarkar 12,723Rathika Sitsabaiesan 18,856George Singh 689Mark Balack (Ind.) 358Derek Lee†Scarborough-Sud-OuestGavan Paranchothy 12,828Michelle Simson 11,701Dan Harris 14,113Stefan Dixon 1,636Michelle SimsonWillowdaleChungsen Leung 22,206Martha Hall Findlay 21,245Mehdi Mollahasani 9,780—Martha Hall FindlayYork-CentreMark Adler 20,355Ken Dryden 13,979Nick Brownlee 6,656Rosemary Frei 974Ken DrydenYork-OuestAudrey Walters 6,094Judy Sgro 12,986Giulio Manfrini 7,685Unblind Tibben 450George Okoth Otura (CHP) 231 Arthur Smitherman (CAP) 169Judy Sgro

Centre de Toronto CirconscriptionCandidats Député sortant Conservateur Libéral NPD Vert AutreBeaches—East YorkBill Burrows 11,067Maria Minna 14,931Matthew Kellway 20,240Aaron Cameron 2,237Roger Carter (M-L) 129Maria MinnaDavenportTheresa Rodrigues 5,573Mario Silva 10,946Andrew Cash 21,096Wayne Scott 1,344Miguel Figueroa (Comm.) 167 Simon Luisi (Animal All.) 128Mario SilvaDon Valley-OuestJohn Carmichael 22,992Rob Oliphant 22,353Nicole Yovanoff 6,284Georgina Wilcock 1,699Dimitris Kabitsis (Comm.) 178Rob OliphantEglinton—LawrenceJoe Oliver 22,633Joe Volpe 18,597Justin Chatwin 5,591Paul William Baker 1,526Joe VolpeParkdale—High ParkTaylor Train 7,907Gerard Kennedy 16,732Peggy Nash 24,045Sarah Newton 1,663Andrew Borkowski (PHC) 256 Lorne Gershuny (M-L) 86 Terry Parker (Mar.) 213Gerard KennedySt. Paul'sMaureen Harquail 17,829Carolyn Bennett 22,420William Molls 12,174Jim McGarva 2,493John Kittredge (Libert.) 304Carolyn BennettToronto-CentreKevin Moore 12,604Bob Rae 22,832Susan Wallace 16,818Ellen Michelson 2,796Judi Falardeau (Libert.) 277 Philip Fernandez (M-L) 76 Catherine Holliday (Comm.) 159 Bahman Yazdanfar (Ind.) 108Bob RaeToronto—DanforthKatarina von Koenig 6,875Andrew Lang 8,463Jack Layton 28,998Adriana Mugnatto-Hamu 3,095Marie Crawford (Animal All.) 476Jack LaytonTrinity—SpadinaGin Siow 10,938Christine Innes 15,218Olivia Chow 35,493Rachel Barney 3,279Chester Brown (Libert.) Nick Lin (M-L) 454Olivia ChowYork-Sud—WestonJilian Saweczko 8,530Alan Tonks 11,481Mike Sullivan 14,119Sonny Day 1,045Alan Tonks

Brampton, Mississauga et Oakville CirconscriptionCandidats Député sortant Conservateur Libéral NPD Vert AutreBramalea—Gore—MaltonBal Gosal 19,907Gurbax Malhi 16,402Jagmeet Singh Dhaliwal 19,368John Moulton 1,748Frank Chilelli (M-L) 371Gurbax MalhiBrampton—SpringdaleParm Gill 24,618Ruby Dhalla 14,221Manijit Grewal 10,022Mark Hoffberg 1,926Liz Rowley (Com) 219Ruby DhallaBrampton-OuestKyle Seeback 28,320Andrew Kania 22,128Jagtar Shergill 11,225Avtaar Soor 1,224Theodore Koum Njoh (Ind.) 387Andrew KaniaMississauga—Brampton-SudEve Adams 23,632Navdeep Bains 18,579Jim Glavin 9,465Benjamin Stone 1,044Tim Sullivan (M-L) 127Navdeep BainsMississauga-Est—CooksvilleWladyslaw Lizon 18,796Peter Fonseca 18,120Waseem Ahmed 8,836Jaymini Bhikha 1,032Pierre Chénier (CPC-ML) 241Albina Guarnieri†Mississauga—ErindaleBob Dechert 29,793Omar Alghabra 21,541Michelle Bilek 10,327John Fraser 1,694Dagmar Sullivan (CPC-ML) 99Bob DechertMississauga-SudStella Ambler 22,991Paul Szabo 18,393Farah Kabouneh 6,354Paul Simas 1,532Richard Barrett (Ind.) 194Paul SzaboMississauga—StreetsvilleBrad Butt 22,104Bonnie Crombie 18,651Aijaz Naqvi 7,834Christopher Hill 1,802Bonnie CrombieOakvilleTerence Young 30,068Max Khan 17,890James Ede 8,117Andrew Chlobowski 2,140Terence Young

Hamilton, Burlington et Niagara CirconscriptionCandidats Député sortant Conservateur Libéral NPD Vert AutreAncaster—Dundas—Flamborough—WestdaleDavid Sweet 30,472Dave Braden 14,717Nancy MacBain 10,953Peter Michael Ormond 2,974David SweetBurlingtonMike Wallace 32,958Alyssa Brierley 14,154David Carter Laird 11,449Graham Mayberry 2151Elaine Baetz (M-L) 140Mike WallaceHaltonLisa Raitt 44,206Connie Laurin-Bowie 20,903Patricia Heroux 12,960Judi Remigio 2,778Tony Rodrigues (CHP) 249Lisa RaittHamilton-CentreJames Byron 11,024Anne Tennier 5,892David Christopherson 23,769—Michael Baldasaro (Mari.) 888 Lisa Nussey (M-L) 252David ChristophersonHamilton-Est—Stoney CreekBrad Clark 17,567Michelle Stockwell 6,411Wayne Marston 21,931Dave William Hart Dyke 1,450Gord Hill (PC) 486 Greg Pattinson (Lib.) 385 Bob Mann (Comm) 138 Wendell Fields (M-L) 95 Bob Green Innes (CAP) 92 Wayne MarstonHamilton MountainTerry Anderson 17,936Marie Bountrogianni 8,787Chris Charlton 25,595Stephen Brotherson 1,505Jim Enos (CHP) 270 Henryk Adamiec (Ind.) 171Chris CharltonNiagara FallsRob Nicholson 28,751Bev Hodgson 10,212Heather Kelley 12,677Shawn Willick 2,088Harold Jonker (CHP) 272Rob NicholsonNiagara-Ouest—GlanbrookDean Allison 33,701Stephen Bieda 8,699David Heatley 12,734Sid Frere 2,530Bryan Jongbloed (CHP) 1,199Dean AllisonSt. CatharinesRick Dykstra 25,571Andrew Gill 10,358Mike Williams 11,973Jennifer Mooradian 1,924Dave Bylsma (CHP) 357 Saleh Waziruddin (Comm) 91Rick DykstraWellandLeanna Villella 20,895John Maloney 7,276Malcolm Allen 21,917Robin Williamson 1,297Ray Game (Ind.) 167 Ron Walker (M-L) 71Malcolm Allen

Centre-ouest de l'Ontario CirconscriptionCandidats Député sortant Conservateur Libéral NPD Vert AutreBrantPhil McColeman 28,045Lloyd St. Amand 10,780Marc Laferrière 16,351Nora Fueten 1,858Leslie Bory (Ind.)174Martin Sitko (Ind.) 138Phil McColemanCambridgeGary Goodyear 29,394Bryan May 8,285Susan Galvao 15,238Jacques Malette 1,978Manuel Couto (M-L) 153Gary GoodyearGuelphMarty Burke 19,252Frank Valeriote 25,574Bobbi Stewart 9,836John Lawson 3,711Phillip Bender (Lib.) 192 Kornelis Klevering (Mari.) 171 Karen Levenson (AAEVP) 123