Head of state (monarch) – King George VI (consort – Elizabeth Bowes-Lyon)
Governor general – Alexander Cambridge (viceregal consort – Princess Alice, Countess of Athlone)
Prime minister – William Lyon Mackenzie King
Lieutenant Governor of Alberta – John C. Bowen
Lieutenant Governor of British Columbia – William Culham Woodward
Lieutenant Governor of Manitoba – Roland Fairbairn McWilliams
Lieutenant Governor of New Brunswick – William George Clark (until November 1) then David Laurence MacLaren
Lieutenant Governor of Nova Scotia – Henry Ernest Kendall
Lieutenant Governor of Ontario – Albert Edward Matthews
Lieutenant Governor of Prince Edward Island – Bradford William LePage (until May 18) then Joseph Alphonsus Bernard
Lieutenant Governor of Quebec – Eugène Fiset
Lieutenant Governor of Saskatchewan – Archibald P. McNab (until February 27) then Thomas Miller (February 27 to June 20) then Reginald John Marsden Parker (from June 22)
Premier of Alberta – Ernest Manning
Premier of British Columbia – John Hart
Premier of Manitoba – Stuart Garson
Premier of New Brunswick – John McNair
Premier of Nova Scotia – A.S. MacMillan (until September 8) then Angus Macdonald
Premier of Ontario – George A. Drew
Premier of Prince Edward Island – J. Walter Jones
Premier of Quebec – Maurice Duplessis
Premier of Saskatchewan – Tommy Douglas
Controller of Yukon – George A. Jeckell
Commissioner of Northwest Territories – Charles Camsell
January 8 - Brantford, Ontario becomes the first Canadian community to fluoridate its water supply.
1944-1945: World War II: Japan's Special Balloon Regiment drops 9,000 balloon bombs over the Pacific Northwest, intended to cause panic, by starting forest fires. Six casualties, a woman and her five children in the American state of Oregon, were reported. The ten metre-wide balloons contained 540 cubic metres of hydrogen and reached as far inland as Manitoba. The event was declared a failure and abandoned, after six months.
January 20 - World War II: The first conscripted Canadian soldiers arrive overseas
February 8 - World War II: The Anglo-Canadian Operation Veritable launched in the Netherlands
February 24 - Radio Canada International begins operation
February 25 - Sergeant Aubrey Cosens posthumously awarded the Victoria Cross
March 1 - Major Frederick Albert Tilston wins the Victoria Cross
March 29 - The British Commonwealth Air Training Plan is shut down
April 16 - World War II: HMCS Esquimalt is sunk off Halifax by a German U-boat.
May 8 - VE Day sees celebrations across the nation, but also the Halifax Riot.
June 4 - Ontario general election, 1945: George Drew's PCs win a majority
June 11 - Federal election: Mackenzie King's Liberals win a third consecutive majority
June 26 - Canada is a founding member of the United Nations
August 2 - The Canadian Armoured Corps becomes the Royal Canadian Armoured Corps
August 15 - VJ Day marks the end of the Second World War. Over a million Canadians had fought in the conflict and 42,000 were killed.
September 5 - The defection of Soviet embassy clerk Igor Gouzenko reveals a Soviet spy ring in Canada.
September 8 - Angus Macdonald becomes premier of Nova Scotia for the second time, replacing Alexander MacMillan
September 12 - The Ford Motor employees in Windsor, Ontario go on strike.
Family allowance payments is introduced.
Canada has its first trade surplus with the United States.
The Tin Flute (Bonheur d'occasion) by Gabrielle Roy.
February 25 - Maurice Richard sets a new record for the most goals in a single ice hockey season.
January 15 - Bonnie Burnard, novelist
January 18 - Steven Truscott, exonerated murderer
January 21 - Len Derkach, politician
January 23 - Mike Harris, politician and 22nd Premier of Ontario
Harold Cardinal, writer, political leader, teacher, negotiator and lawyer (d.2005)
Joe Ghiz, politician and 29th Premier of Prince Edward Island (d.1996)
February 2 - Pauline Vaillancourt, singer
February 5 - Nancy McCredie, track and field athlete
February 19 - Bill Casey, politician
February 20 - Donald McPherson, figure skater (d.2001)
March 4 - Patrick Boyer, politician and university professor
March 6 - John A. MacNaughton, financier and executive (d.2013)
March 26 - Diane McGifford, politician
March 17 - Dave Bailey, track and field athlete
May 27 - Bruce Cockburn, folk/rock guitarist and singer-songwriter
June 11 - Robert Munsch, children's writer
June 16 - Lucienne Robillard, politician and Minister
June 20 - Anne Murray, singer
August 4 - Ben Sveinson, politician
August 11 - David Walsh, businessman, disgraced head of Bre-X (d.1998)
August 12 - Mary Stewart, swimmer and world record breaker
August 15 - Rosann Wowchuk, politician and Deputy Premier of Manitoba
September 21 - Bjarni Tryggvason, engineer and astronaut
October 15 - John Murrell, playwright
November 5 - Jacques Lanctôt, member of the Front de libération du Québec (FLQ)
November 11 - Norman Doyle, politician
November 12 - Neil Young, singer-songwriter, musician and film director
December 4 - Roberta Bondar, neurologist and Canada's first female astronaut
Felix Partz, artist and co-founder of the artistic collective General Idea (d.1994)
March 2 - Emily Carr, artist and writer (b.1871)
March 23 - Walter Charles Murray, first President of the University of Saskatchewan (b.1866)
July 17 - Adjutor Rivard, lawyer, writer, judge and linguist (b.1868)
October 24 - Franklin Carmichael, painter and Group of Seven member (b.1890)
November 1 - Marie Lacoste Gérin-Lajoie, feminist and social activist (b.1867)
December 10 - Joseph-Octave Samson, businessperson, politician and 28th Mayor of Quebec City (b.1862)
1945 in Canada Wikipedia
Events from the year 1945 in Canada.