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Events from the year 2005 in Canada. This year was recognized, by Veterans Affairs Canada, as the Year of the Veteran.
- March 1 - Frank McKenna becomes the new Canadian Ambassador to the United States.
- March 3 - Four Royal Canadian Mounted Police officers – Peter Schiemann, Lionide Johnston, Anthony Gordon and Brock Myrol – are killed by local James Roszko in a drug raid on his farm in Mayerthorpe, Alberta.
- March 8 - Grant DePatie, a gas station worker in Maple Ridge, British Columbia, is dragged to death for seven kilometers under a moving van after chasing after a 16-year old teenager who stole $12 worth of gas. Later, a new law called "Grant's Law", requires citizens in British Columbia to pay before they pump, becoming the first province in Canada to enforce this law.
- March 11 - 2004 Canadian sponsorship scandal: The Canadian government launches a $39 million lawsuit against Lafleur Communication Marketing, GroupAction, Groupe Everest and Le Groupe Polygone.
- March 11 - Without warning, Jetsgo immediately ceases all operations.
- March 16 - Ripudaman Singh Malik and Ajaib Singh Bagri are found not guilty by the Supreme Court of British Columbia at the Air India Trial.
- March 23 - The Security and Prosperity Partnership of North America (SPP) was launched by Paul Martin, Prime Minister of Canada, Vicente Fox, President of Mexico, and George W. Bush, President of the United States in Waco, Texas with a view to deepening the North American Free Trade Agreement following the September 11, 2001 attacks in the U.S.
- March 24 - Paul Martin arranges the appointment of Roméo Dallaire, Art Eggleton, Lillian Dyck, Jim Cowan, Elaine McCoy, Grant Mitchell, Robert Peterson, Nancy Ruth and Claudette Tardif to the Senate of Canada.
- May - The Council on Foreign Relations releases the Report of an Independent Task Force on North America entitled Building A North American Community which elaborates on the Security and Prosperity Partnership of North America agreed in Waco, Texas on March 23, 2005 by Canadian Prime Minister Paul Martin, U.S. President George W. Bush and Mexican President Vicente Fox to produce a North American Union merging [Canada, the U.S. and Mexico. The Report airs the same month that the "First North-American Model Parliament" is launched in the Canadian Senate by the North American Forum on Integration (NAFI) based in Montreal.
- May 1 - Canada imposes a 15% surtax sanction on U.S. imports of cigarettes, oysters and live swine, after the Byrd Amendment was found to be illegal by the World Trade Organization.
- May 5 - A Canadian Forces Maritime Command board of inquiry finds no one accountable for the fatal fire aboard HMCS Chicoutimi.
- May 10 - The House passes a motion, which the opposition says should topple the government. The governing Liberals refuse to resign following this by claiming that this is a procedural matter and not a vote of no confidence.
- May 13 - Jetsgo declares bankruptcy
- May 17 - Belinda Stronach who ran for the leadership of the Conservative Party crosses the floor to the Liberal Party and becomes Minister of Human Resources and Skills Development.
- May 17 - Queen Elizabeth II arrives in Canada for a nine-day visit to celebrate the centennial of Alberta and Saskatchewan.
- May 17 - British Columbia general election and electoral reform referendum
- May 19 - In the House of Commons, Paul Martin's minority government survives two confidence votes. For the first time in Canadian history, the Speaker of the House votes to break a tie in a confidence vote, which the government wins 153 to 152.
- May 20 - Six oil workers die and another two dozen are injured in Alberta when their bus is T-boned by a tractor-trailer.
- May 23 - The four Canadian soldiers killed in the Tarnak Farm incident by United States Air Force fighter pilot Major Harry Schmidt on April 18, 2002, are posthumously remembered at a ceremony in Fort Campbell, Kentucky, along with three Americans, whose names were added to a memorial wall.
- May 24 - Todd Russell of the Liberal Party wins a federal by-election held in Labrador to replace the late Lawrence O'Brien.
- May 27–30 - Triumvirate, the "First North-American Model Parliament", being a simulation of a North American parliament, is launched in the Canadian Senate in Ottawa by the North American Forum on Integration (NAFI), at the invitation of Liberal Senator Céline Hervieux-Payette.
- May 31 - Miss Universe Canada Natalie Glebova became Miss Universe in Bangkok.
- July 2 - Live 8 takes place in Park Place, Barrie, Ontario.
- July 3–16 year old Matthew Martins is murdered at a Surrey, British Columbia SkyTrain station. His girlfriend is charged four years later.
- July 4 - Karla Homolka is released from prison.
- July 8 - Adrienne Clarkson undergoes pacemaker surgery. Beverly McLachlin, as Chief Justice of Canada, becomes administrator of the government during Clarkson's convalescence.
- July 13 - Dodge White, an American man, is arrested in Victoria, British Columbia by Canada Border Services Agency for possession of an explosive device.
- July 13 - Bernard Ebbers, an Edmonton, Alberta–born American businessman, is sentenced by U.S. Federal Judge Barbara Jones to 25 years in prison for corporate fraud.
- July 14 - A United States appellate court rules that beef imports from Canada do not hurt the food supply despite mad cow disease concerns, effectively re-opening the border.
- July 20 - Same-sex marriage in Canada becomes legal when Chief Justice Beverley McLachlin (acting as the governor general's deputy or administrator of the government) gives royal assent to the Civil Marriage Act.
October to December
- October 10 - Education strike begins in British Columbia closing down 40,000 schools, and turning down 600,000 students.
- October 24 - Education strike ends in British Columbia exactly two weeks after the beginning of the strike.
- October 26 - An evacuation of over 800 members of the Kashechewan First Nation by the Government of Ontario to Ottawa, Sudbury, and other communities in Ontario begins after E. coli is found in their water supply network.
- November 24 - Opposition leader Stephen Harper moves a motion of no confidence in the government of Paul Martin
- November 28 - The House of Commons passes a motion of no confidence in the government of Paul Martin
- November 28 - 190 nations gather for the Montreal Climate Change Conference 2005 until December 9
- November 29 - The governor general, on the advice of the prime minister, dissolves Parliament and calls a general election for January 23, 2006.
- November 30 - A Montreal judge overturns the 14 conditions imposed on killer Karla Homolka.
- December 26 - Seven people are shot and one girl killed in a shooting by two men on Yonge St., Toronto, Ontario
Arts and literature
- January 4 - The Canadian junior men's hockey team wins the IIHF World Junior Championship, defeating Russia 6–1. The team, which went undefeated over the course of the tournament, was touted as the "Greatest Team" to ever play in the junior men's tournament. They won Canada's first gold medal at the tournament since 1997.
- March 10 - Governor General Adrienne Clarkson announces that she will create a trophy for women's hockey in Canada. (The National Hockey League's Stanley Cup was donated in 1892 by a predecessor of Clarkson's, Lord Frederick Stanley.)
- May 8 - Steve Nash becomes the first Canadian player to win the NBA MVP Award
- June 15 - Wayne Gretzky is appointed executive director of Team Canada for the 2006 Winter Olympics in Turin, Italy.
- October 5 - After a lockout, which wiped out the entire 2004-05 NHL Season, NHL hockey returns to play.
- November 17 - Paul Boehm wins silver in skeleton in the World Cup at Lake Placid, New York
- November 27 - The Edmonton Eskimos defeat the Montreal Alouettes 38–35 in overtime in the 93rd Grey Cup.
- December 3 - Clara Hughes wins gold for the Women's 5000 metres at the Speed Skating World Cup
- December 3 - Cindy Klassen wins bronze for the Women's 5000 metres in speed skating at the World Cup.
- December 3 - Denny Morrison, Arne Dankers and Justin Warsylewicz win silver for the 3,200 metre Men's Team Pursuit in speed skating at the World Cup.
- December 3 - Marie-France Dubreuil and Patrice Lauzon win gold in figure skating at the NHK Trophy event.
- December 3 - Vanier Cup: the Wilfrid Laurier Golden Hawks beat the Saskatchewan Huskies 24–23 at Ivor Wynne Stadium, Hamilton, Ontario
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January to March
- January 6
- January 13 - Earl Cameron, broadcaster and news anchor (born 1915)
- January 14 - Charlotte MacLeod, writer (born 1922)
- January 15 - Dan Lee, animator (born 1969)
- January 22 - Harry J. Boyle, broadcaster and writer (born 1915)
- January 26 - Fraser Elliott, lawyer, supporter of the arts and philanthropist (born 1921)
- January 27 - Jonathan Welsh, actor (born 1947)
- January 30 - Martyn Bennett, musician (born 1971)
- January 31 - Ron Basford, politician and Minister (born 1932)
- February 1 - John Vernon, actor (born 1932)
- February 5 - Bob McAdorey, television and radio broadcaster (born 1935)
- February 21 - Gérard Bessette, author and educator (born 1920)
- March 12 - Bill Cameron, news anchor, television producer, columnist and author (born 1943)
- March 26 - Gérard Filion, businessman and journalist (born 1909)
- March 27 - Wilfred Gordon Bigelow, heart surgeon (born 1913)
- March 28 - Robin Spry, filmmaker and television producer (born 1939)
April to June
- April 3 - Frank Clair, Canadian Football League coach (born 1917)
- April 22 - Stephane Provost, National Hockey League linesman (born 1967)
- April 27
- May 2 - Robert Hunter, environmentalist, journalist, author and politician (born 1941)
- May 11 - Léo Cadieux, politician, Minister and diplomat (born 1908)
- May 22 - Terry Carisse, singer, guitarist, and songwriter (born 1942)
- May 25 - Domenic Troiano, rock guitarist (born 1946)
- June 3 - Harold Cardinal, writer, political leader, teacher, negotiator and lawyer (born 1945)
- June 14 - Norman Levine, short-story writer, novelist and poet (born 1923)
- June 17 - Ben Kerr, street performer, author, broadcaster, musician and perennial candidate (born 1930)
July to September
- July 9
- July 10 - Frank Moores, businessman, politician and 2nd Premier of Newfoundland (born 1933)
- July 20 - James Doohan, actor (born 1920)
- July 21 - Long John Baldry, singer and voice actor (born 1941)
- August 3 - Ernest Smith, soldier and Victoria Cross recipient in 1944 (born 1914)
- August 7 - Peter Jennings, journalist and television news anchor (born 1938)
- August 9 - Kay Tremblay, actress (born 1914)
- August 18 - Gérard Filion, businessman and journalist (born 1909)
- August 21 - James Jerome, jurist, politician and Speaker of the Canadian House of Commons (born 1933)
October to December