1923 in Canada

Crown

• Monarch – George V^[1]

Federal government

• Governor General – Julian Byng
• Prime Minister – William Lyon Mackenzie King
• Chief Justice – Louis Henry Davies (Prince Edward Island)
• Parliament – 14th

Provincial governments

Territorial governments

Full date unknown

• The Duplex, a Canadian 4-cylinder automobile is built in Montreal.^[2]
• Fleetwood-Knight, a Canadian automobile is built in Kingston, Ontario.^[3]

Music

• April 23 – The Toronto Symphony Orchestra gives its first concert.

New books

• Rilla of Ingleside Lucy Maud Montgomery (1921)

January to March

• January 1 – Roméo Sabourin, World War II spy (d. 1944)
• January 7 – Hugh Kenner, literary scholar, critic and professor (d. 2003)
• January 21 – Judith Merril, science fiction writer, editor and political activist (d. 1997)
• January 27 – Marcelle Corneille, administrator and educator (d. 2019)
• February 4 – Conrad Bain, actor (Maude, Diff'rent Strokes) (d. 2013)
• March 1 – Uno Helava, inventor
• March 2 – Ghitta Caiserman-Roth, painter (d. 2005)
• March 4 – Stanley Haidasz, politician (d. 2009)
• March 10 – Richard Doyle, journalist, editor and Senator (d. 2003)
• March 15 – Laurent Desjardins, politician (d. 2012)
• March 19 – Henry Morgentaler, physician and pro choice advocate (d. 2013)
• March 23 - James Barber, cookbook author and television chef (d. 2007)
• March 30 – Milton Acorn, poet, writer and playwright (d. 1986)

April to June

• April 7 – Aba Bayefsky, artist and teacher (d. 2001)
• April 25 – Melissa Hayden, ballerina (d. 2006)
• May 5 – John Black Aird, lawyer, politician and 23rd Lieutenant Governor of Ontario (d. 1995)
• May 9 – Reuben Baetz, politician (d. 1996)
• May 18 – Jean-Louis Roux, entertainer and playwright
• May 20 – Frank Morris, Canadian football player (d. 2009)
• June 3 – Phil Nimmons, jazz musician (d. 2024)
• June 5 – Roger Lebel, actor (d. 1994)
• June 6 – Bruce Campbell, Edmonton alderman (d. 2011)

July to September

• July 21 – Rudolph A. Marcus, chemist and 1992 Nobel Prize in Chemistry laureate
• July 25 – Bill Fitsell, sports journalist and historian (d. 2020)
• July 31 – Victor Goldbloom, pediatrician, lecturer and politician (d. 2016)
• August 3 – Robert Campeau, financier and real estate developer
• August 6 – Paul Hellyer, politician and commentator
• September 1 – Kenneth Thomson, 2nd Baron Thomson of Fleet, businessman and art collector (d. 2006)
• September 2 – David Lam, businessman and 25th Lieutenant Governor of British Columbia (d. 2010)
• September 7 – Byron Seaman, businessman and part owner of the Calgary Flames (d. 2021)
• September 18 – Bertha Wilson, jurist and first female Puisne Justice of the Supreme Court of Canada (d. 2007)
• September 21 – Robert Uffen, research geophysicist, professor, and university administrator (d. 2009)

October to December

• October 7 – Jean-Paul Riopelle, painter and sculptor (d. 2002)
• October 10 - Kildare Dobbs, short story and travel writer (d. 2013)
• October 22 – Rodrigue Bourdages, politician (d. 1997)
• October 22 – Norman Levine, short-story writer, novelist and poet (d. 2005)
• October 23 – Réjane L. Colas, jurist
• November 1 – Gordon R. Dickson, science fiction author (d. 2001)
• November 2 – Harold Horwood, novelist and non-fiction writer (d. 2006)
• November 11 – Donald Tolmie, politician (d. 2009)
• November 22 – Arthur Hiller, film director
• December 27 – Bruno Bobak, artist (d. 2012)

January to June

• February 20 – Thomas George Roddick, surgeon, medical administrator and politician (b. 1846)
• March 2 – Joseph Martin, lawyer, politician and 13th Premier of British Columbia (b. 1852)
• April 25 – Louis-Olivier Taillon, Premier of Quebec (b. 1840)
• June 7 – John Best, politician (b. 1861)

July to December

• July 17 – John Strathearn Hendrie, Lieutenant Governor of Ontario (b. 1857)
• October 2 – John Wilson Bengough, political cartoonist (b. 1851)
• December 5 – William Mackenzie, railway contractor and entrepreneur (b. 1849)
• December 9 – John Herbert Turner, Premier of British Columbia (b. 1834)