Here’s what you need to know about the federal election in Ottawa, eastern Ontario and western Quebec

A person casts a ballot in this file photo. (Chris Young / THE CANADIAN PRESS)

The 45th federal election campaign is underway, with a 37-day dash to election day on Monday, April 28.

Liberal Party leader Mark Carney asked Governor General Mary Simon to dissolve Parliament on Sunday, triggering the election campaign.

Both Carney and Conservative Party leader Pierre Poilievre are running in Ottawa ridings for a seat in the House of Commons.

The federal election campaign includes new names for several ridings in Ottawa, eastern Ontario and western Quebec, with new boundaries for many ridings.

Here is a look at the new riding names:

• Kanata-Carleton is now Kanata
• Ottawa-Vanier is now Ottawa-Vanier-Gloucester
• Glengarry-Prescott-Russell is now Prescott-Russell-Cumberland, with the riding stretching into Ottawa’s east end
• The riding of Hastings-Lennox and Addington is now Hastings-Lennox and Addington-Tyendinaga
• Lanark-Frontenac-Kingston is now Lanark-Frontenac
• Renfrew-Nipissing-Pembroke is renamed Algonquin-Renfrew-Pembroke
• Pontiac is now Pontiac-Kitigan Zibi

There will be four advance polling days from April 18 to 21. Polling stations will be open from 9 a.m. to 9 p.m.

Meet the candidates running in Ottawa, eastern Ontario and western Quebec in the 45th federal election. This article will be updated as the federal parties nominate more candidates.

Ottawa

Carleton

• Size: 1,873 km²
• Population: 124,416 (2021 Census)
• Number of electors on list: 99,087 (estimated)

The riding of Carleton is part of the City of Ottawa, covering the western and southern areas of the city. Elections Canada redrew the boundary for Carleton for the 2025 election, stretching into part of the former riding of Kanata-Carleton and moving the boundary to the Ottawa River.

• People’s Party of Canada: Chantale Dore
• Liberal Party: Bruce Fanjoy
• Conservative Party: Pierre Poilievre (incumbent)

Conservative Party leader and incumbent MP Pierre Poilievre has represented the riding since 2004. Poilievre won the riding in the 2021 election with 50 per cent of the vote. The riding was recreated from the ridings of Carleton-Mississippi Mills, Nepean-Carleton and Ottawa South for the 2015 election.

Kanata

• Size: 211 km²
• Population: 121,458 (2021 Census)
• Number of electors on list: 90,004 (estimated)

The former riding of Kanata-Carleton is now known as Kanata for the 2025 federal election. The riding boundary has been redrawn to transfer the northwestern edge of the riding to Carleton and the western section of the old Ottawa West-Nepean riding moves into Kanata’s boundary. The Kanata riding incudes Kanata and the Kanata technology park.

• Conservative Party: Greg Kung
• Green Party: Jennifer Purdy
• Liberal Party: Jenna Sudds (incumbent)
• People’s Party of Canada: Viktoria Zaniewska

Incumbent Liberal MP Jenna Sudds has represented the riding of Kanata-Carleton since the 2021 federal election. Sudds won the riding in 2021 with 42 per cent of the vote. The Liberal Party has represented the riding since it was formed for the 2015 election.

Nepean

• Size: 82 km²
• Population: 122,229 (2021 Census)
• Number of electors on list: 87,292 (estimated)

The riding boundary for Nepean has been redrawn for the 2025 federal election, with a section of the riding moving to the riding of Carleton. The riding stretches from Highway 416 in the west to the Canadian National Railway in the north, the Rideau River in the east and Barnsdale Road in the south.

• Conservative Party: Barbara Bal
• Liberal Party: Mark Carney
• Green Party: Greg Hopkins
• People’s Party of Canada: Yan Mo Maneechai

The Liberal Party announced on the eve of the federal election that Liberal leader Mark Carney will run in the riding of Nepean. Incumbent Liberal MP Chandra Arya has represented the riding since 2015, but said on March 20 his nomination to run in Nepean had been revoked. Arya won the riding in 2021 with 46 per cent of the vote. Elections Canada reinstated the riding of Nepean for the 2015 election, splitting up the riding of Nepean-Carleton.

Orléans

• Size: 68 km²
• Population: 126,918 (2021 Census)
• Number of electors on list: 126,918 (estimated)

The boundary for Orléans has been redrawn for the 2025 federal election, with sections of the riding shifting to the ridings of Ottawa-Vanier-Gloucester, Carleton and Prescott-Russell-Cumberland.

• NDP: Oulai B. Goué
• Liberal Party: Marie-France Lalonde (incumbent)
• Conservative Party: Steve Mansour
• People’s Party of Canada: Tafiqul Abu Mohammed

Liberal Party MP Marie-France Lalonde has represented the riding since the 2019 election. Lalonde won the riding with 52 per cent of the vote in 2021. Former Liberal MP and cabinet minister Andrew Leslie represented the riding of Orléans between 2015 and 2019. Conservative MP Royal Galipeau represented the riding between 2006 and 2015, winning three elections.

Ottawa Centre

• Size: 36 km²
• Population: 126,560 (2021 Census)
• Number of electors on list: 98,124 (estimated)

The riding map for Ottawa Centre has been changed for the 2025 election, with part of the riding shifting to Ottawa West-Nepean and part of Ottawa South moving to Ottawa-Centre. The riding is home to Parliament Hill, the Ottawa Hospital Civic Campus and the Central Experimental Farm.

• NDP: Joel Harden
• Liberal Party: Yasir Naqvi (incumbent)
• People’s Party of Canada: Martyn Simms

Liberal incumbent Yasir Naqvi has represented the riding of Ottawa Centre since 2021. Naqvi won the riding with 45.5 per cent of the vote in 2021. Former Liberal cabinet minister Catherine McKenna represented the riding between 2015 and 2021. The riding has been represented by a Liberal or an NDP MP since 1979, with the late Paul Dewar representing the riding for the NDP between 2006 and 2015. Former NDP MPP Joel Harden is now running for the federal NDP in the riding.

Ottawa South

• Size: 96 km²
• Population: 126,791 (2021 Census)
• Number of electors on list: 91,836 (estimated)

The new riding boundary for Ottawa South includes part of Carleton, while part of the old boundary for Ottawa South shifted to Ottawa Centre. The riding of Ottawa South is home to the Ottawa International Airport, the Ottawa Hospital General Campus and CHEO. It stretches from the Rideau River and Highway 417 in the north to the border of the riding of Carleton at Rideau Road.

• Liberal Party: David McGuinty (incumbent)
• People’s Party of Canada: Tony Papadimitriou
• Conservative Party: Blair Turner

Liberal incumbent David McGuinty has represented the riding of Ottawa South since 2004. McGuinty won the 2021 election with 49 per cent of the vote. Longtime Liberal MP John Manley represented the riding between 1988 and 2004. The riding of Ottawa South was first created for the 1988 election, taken from the ridings of Ottawa-Carleton, Ottawa Centre and Ottawa Vanier.

Ottawa West-Nepean

• Size: 44 km²
• Population: 128,592 (2021 Census)
• Number of electors on list: 92,273 (estimated)

The boundary map for Ottawa West-Nepean has shifted, with the western part of the riding moving to Kanata. The riding of Ottawa-West Nepean stretches from the Ottawa River in the north to the Canadian National Railway/Nepean boundary in the south, and Fisher Avenue/Golden Avenue in the east and Highway 416/Moodie Drive in the west.

• People’s Party of Canada: Glen Armstrong
• NDP: Josh Bizjak
• Conservative Party: Ryan Telford
• Liberal Party: Anita Vandenbeld (incumbent)

Liberal Party incumbent Anita Vandenbeld has represented the riding of Ottawa West-Nepean since the 2015 election. Vandenbeld won in 2021 with 45 per cent of the vote. Former Conservative MP John Baird represented the riding between 2006 and 2015, before not seeking re-election. Liberal Marlene Catterall represented the riding between 1997 and 2006.

Ottawa-Vanier-Gloucester

• Size: 49 km²
• Population: 126,999 (2021 Census)
• Number of electors on list: 94,342 (estimated)

The riding of Ottawa Vanier is now known as Ottawa-Vanier-Gloucester, with part of the old boundary for Orléans shifted to now include Blackburn Hamlet. The riding includes the University of Ottawa, the ByWard Market and Rideau Hall. It stretches from the Ottawa River in the north to Highway 417/Blackburn Hamlet Bypass in the south, the Rideau Canal in the west and the riding of Orléans in the east.

• Liberal Party: Mona Fortier (incumbent)
• NDP: Tristan Oliff
• Conservative Party: Dean Wythe

Liberal incumbent Mona Fortier has represented the riding of Ottawa-Vanier since winning a byelection in 2017. Fortier won the riding with 49 per cent of the vote in the 2021 election. The late Mauril Belanger represented the riding of Ottawa Vanier between 1995 and 2016. The Liberal Party has represented the riding of Ottawa-Vanier, and the previously named riding of Ottawa East, since 1935.

Prescott-Russell-Cumberland

• Size: 2,333 km²
• Population: 109,125 (2021 Census)
• Number of electors on list: 90,701 (estimated)

Prescott-Russell-Cumberland is the new name for the riding formerly known as Glengarry-Prescott-Russell. The riding now includes a piece of Ottawa in the east end (Ramsayville/Mer Bleue/Carlsbad Springs), along with Clarence-Rockland, Hawkesbury, The Nation, Casselman and the townships of Alfred and Plantagenet, Champlain, East Hawkesbury and Russell.

• Liberal Party: Giovanna Mingarelli
• People’s Party of Canada: Deborah Perrier

Liberal MP Francis Drouin is not seeking re-election after representing the riding between 2015 and 2025. Drouin won the 2021 election with 46 per cent of the vote. Former Conservative MP Pierre Lemieux represented the riding between 2006 and 2015. Former Liberal MP Don Boudria represented the riding between 1984 and 2006. Either a Conservative MP or a Liberal MP has represented the riding of Glengarry-Prescott and Glengarry-Prescott-Russell since 1953 when the riding was formed.

Eastern Ontario

Algonquin-Renfrew-Pembroke

• Size: 11,359 km²
• Population: 107,420 (2021 Census)
• Number of electors on list: 90,234 (estimated)

The former riding of Renfrew-Nipissing-Pembroke is now known as Algonquin-Renfrew-Pembroke, but there are no changes to the riding boundaries for the 2025 election. The riding includes Pembroke, Arnprior, Deep River, Laurentian Hills, Petawawa, Renfrew and the Pikwakanagan Reserve.

• People’s Party of Canada: Patrick Dale
• Conservative Party: Cheryl Gallant (incumbent)
• Liberal Party: Cyndi Mills
• NDP: Eileen Jones Whyte

Longtime Conservative MP Cheryl Gallant has represented the riding of Renfrew-Nipissing-Pembroke since 2000. Gallant won the 2021 election with 50 per cent of the vote. Gallant was first elected as an Alliance MP in 2000. Former Liberal MP Len Hopkins represented the riding of Renfrew-Nipissing-Pembroke between 1979 and 1997, while Liberal Hec Clouthier was the riding MP between 1997 and 2000.

Bay of Quinte

• Size: 1,440 km²
• Population: 110,164 (2021 Census)
• Number of electors on list: 91,082 (estimated)

The riding of Bay of Quinte includes the City of Belleville, part of the Cite of Quinte West and the County of Prince Edward. The redrawing of the riding’s boundaries sees part of it shifted to Northumberland-Clarke.

• People’s Party of Canada: Nick Maddison
• Conservative Party: Ryan Williams (incumbent)

Conservative MP Ryan Williams has represented the riding of Bay of Quinte since 2021. Williams defeated Liberal incumbent Neil Ellis in the 2021 election, receiving 41 per cent of the vote. Ellis represented the riding from 2015 to 2021 after the riding was formed from the ridings of Northumberland-Quinte West and Prince Edward-Hastings.

Hastings-Lennox and Addington-Tyendinaga

• Size: 8,419 km²
• Population: 106,468 (2021 Census)
• Number of electors on list: 90,713 (estimated)

The riding of Hastings-Lennox and Addington is now known as Hastings-Lennox and Addington-Tyendinaga. The riding includes part of Belleville north of Highway 401, part of the City of Quinte West, the towns of Bancroft, Deseronto and Greater Napanee, the municipalities of Centre Hastings, Hastings Highlands, Marmora and Lake and Tweed. The riding also includes the Tyendinaga Mohawk Territory, according to Elections Canada.

• NDP: Ava Duffy
• Conservative Party: Shelby Kramp-Neuman (incumbent)
• Liberal Party: Tracey Sweeney Schenk
• People’s Party of Canada: Zaid Yusufani

Conservative MP Shelby Kramp-Neuman has represented the riding since the 2021 election. Kramp-Neuman won the 2021 election with 45 per cent of the vote. Former Conservative, turned independent MP, Derek Sloan represented the riding between 2019 and 2021, while Liberal Mike Bossio represented the riding from 2015 to 2019. The riding of Hastings-Lennox and Addington was created from the ridings of Lanark-Frontenac-Lennox and Addington and Prince Edward-Hastings for the 2015 election.

Kingston and the Islands

• Size: 628 km²
• Population: 134,415 (2021 Census)
• Number of electors on list: 103,894 (estimated)

The riding of Kingston and the Islands includes the City of Kingston and the Township of Frontenac Islands. The redrawing of the ward boundary for the 2025 election sees part of the former riding of Lanark-Frontenac-Kingston, north of Highway 401, shifted to Kingston and the Islands.

• Liberal Party: Mark Gerretsen (incumbent)
• Green Party: Fintan Hartnett
• NDP: Daria Juüdi-Hope
• Conservative Party: Bryan Paterson
• People’s Party of Canada: Ronald Perry

Liberal MP Mark Gerretsen has represented the riding since 2015. Gerretsen won the 2021 election with 41 per cent of the vote. The Liberals have represented the riding of Kingston and the Islands since 1988, with Peter Milliken (1988 to 2011) and Ted Hsu (2011-15) serving as MP. Progressive Conservative Flora MacDonald represented the riding between 1972 and 1988. The riding of Kingston and the Islands was created from Kingston and Prince Edward-Lennox in 1968. Conservative Party candidate Bryan Paterson is the current mayor of Kingston.

Lanark-Frontenac

• Size: 6,084 km²
• Population: 103,120 (2021 Census)
• Number of electors on list: 86,678 (estimated)

The former riding of Lanark-Frontenac-Kingston is now known as Lanark-Frontenac. The riding includes the towns of Carleton Place, Mississippi Mills, Perth and Smiths Falls, and the townships of Beckwith, Central Frontenac, Drummond/North Elmsley, Lanark Highlands, Montague, North Frontenac, South Frontenac and Tay Valley.

• Liberal Party: Michelle Foxton
• People’s Party of Canada: Shane Peters
• Conservative Party: Scott Reid (incumbent)

Conservative MP Scott Reid has represented the riding since it was first formed in 2015. Reid won the 2021 election with 49 per cent of the vote. The riding of Lanark-Frontenac-Kingston was first contested in 2015 after being created from the ridings of Carleton-Mississippi Mills, Kingston and the Islands and Lanark-Frontenac-Lennox and Addington.

Leeds-Grenville-Thousand Islands and Rideau Lakes

• Size: 3,356km²
• Population: 104,075 (2021 Census)
• Number of electors on list: 88,798 (estimated)

The riding of Leeds-Grenville-Thousand Islands and Rideau Lakes includes Brockville, Gananoque, Prescott, the municipality of North Grenville, and the villages of Merrickville-Wolford and Westport. There are no changes to the riding boundary for the 2025 election.

• Conservative Party: Michael Barrett (incumbent)
• NDP: Paul Lancione
• People’s Party of Canada: Hailey Simpson

Conservative MP Michel Barrett has represented the riding since 2018, when he won a byelection. Barrett won the 2021 election with 50.5 per cent of the vote. The late Conservative MP Gord Brown represented the riding of Leeds-Grenville and Leeds-Grenville-Thousand Islands and Rideau Lakes between 2004 and 2018.

Stormont-Dundas-Glengarry

• Size: 3,309 km²
• Population: 114,637 (2021 Census)
• Number of electors on list: 95,024 (estimated)

The riding of Stormont-Dundas and Glengarry now includes a section of the former riding of Glengarry-Prescott-Russell, including Maxville. The riding includes Cornwall, South Dundas, North Dundas, North Glengarry, North Stormont, South Glengarry, South Stormont and Akwesasne.

• Conservative Party: Eric Duncan (incumbent)
• Liberal Party: Sarah Good

Conservative MP Eric Duncan has represented the riding of Stormont-Dundas-Glengarry since 2019. The former Mayor of North Dundas was re-elected in 2021 with 56 per cent of the vote. Former Conservative MP Guy Lauzon represented the riding of Stormont-Dundas-South Glengarry between 2004 and 2019. Former Liberal MP Bob Kilger represented the riding between 1988 and 2004, which was known as Stormont-Dundas, Stormont-Dundas-Charlottenburgh and Stormont-Dundas-South Glengarry.

Western Quebec

Argenteuil--La Petite-Nation

• Size: 4,802 km²
• Population: 108,903 (2021 Census)
• Number of electors on list: 90,546 (estimated)

The new riding boundaries for Argenteuil--La Petite-Nation includes a section of the former riding of Pontiac. The riding includes the northeasterly sector of Gatineau, Masson-Angers, Buckingham, Papineau, the Municipality of Argenteuil and des Collines-de-l’Outaouais.

• Conservative Party: Martin Charron
• Green Party: Bertha Fuchsman-Small
• Liberal Party: Stéphane Lauzon (incumbent)
• People’s Party of Canada: Lindsey Therrien

Liberal MP Stéphane Lauzon has represented the riding since 2015. Lauzon won the riding with 38 per cent of the vote in 2021, defeating the Bloc Quebecois by 1,529 votes. The riding was created for the 2015 election. It encompasses a portion of the electoral districts of Pontiac and Argenteuil-Papineau-Mirabel.

Gatineau

• Size: 83 km²
• Population: 109,624 (2021 Census)
• Number of electors on list: 84,745 (estimated)

The riding of Gatineau consists of the City of Gatineau from the Gatineau River east along the Ottawa River. Part of the former riding of Pontiac has been shifted to the riding of Gatineau.

• Green Party: Rachid Jemmah
• Liberal Party: Steven MacKinnon (incumbent)
• Conservative Party: Kethlande Pierre
• People’s Party of Canada: Mathieu Saint-Jean

Incumbent Liberal MP Steven MacKinnon has represented the riding since 2015. MacKinnon won the 2021 election with 50 per cent of the vote. Former MP Francoise Boivin represented the riding from 2011 to 2015 for the NDP, and former Bloc Quebecois MP Richard Nadeau represented the riding from 2006 to 2011. The riding of Gatineau, created from the riding of Hull and Wright, was first contested in 1945.

Hull-Aylmer

• Size: 61 km²
• Population: 105,559 (2021 Census)
• Number of electors on list: 73,368 (estimated)

The riding of Hull-Aylmer consists of part of the City of Gatineau.

• People’s Party of Canada: Jean-Francois D’Aoust
• Conservative Party: Jill Declare
• Liberal Party: Greg Fergus (incumbent)
• NDP: Pascale Matecki
• Green Party: Frédéric Morin-Paquette

Liberal MP Greg Fergus has represented the riding of Hull-Aylmer since the 2015 election. Fergus won the 2021 election with 52.5 per cent of the vote. Former NDP MP Nycole Turmel represented the riding from 2011 to 2015, while former Liberal MP Marcel Proulx represented the riding between 1999 and 2011. The riding of Hull-Aylmer, formerly known as Hull, was first contested in the 1917 election.

Pontiac-Kitigan Zibi

• Size: 26,513 km²
• Population: 111,138 (2021 Census)
• Number of electors on list: 83,316 (estimated)

The former riding of Pontiac is now known as Pontiac-Kitigan Zibi. A section of the former riding shifted to the riding of Argenteuil--La Petite-Nation. The riding includes Pontiac, a section of the City of Gatineau, the municipalities of Cantley, Chelsea and La Peche, and Kitigan Zibi.

• Green Party: Claude Bertrand
• Liberal Party: Sophie Chatel (incumbent)
• People’s Party of Canada: Todd Hoffman
• Conservative Party: Brian Nolan
• NDP: Gilbert W. Whiteduck

Liberal MP Sophie Chatel has represented the riding since the 2021 election. Chatel won the 2021 election with 43 per cent of the vote. Former Liberal MP William Amos represented the riding from 2015 to 2021. NDP Mathieu Ravignat represented the riding of Pontiac from 2011 to 2015, and former Conservative MP and cabinet minister Lawrence Cannon represented Pontiac between 2006 and 2011. The riding of Pontiac has existed since 1867.