See also: 1983 in Canada, other events of 1984, 1985 in Canada and the list of 'years in Canada'.
Incumbents
Events
- January 12: Richard Nerysoo becomes government leader of the Northwest Territories, replacing George Braden
- February 29: Pierre Trudeau announces he will retire as soon as the Liberals can elect another leader
- April 5: A fire races through Number 26 Colliery located in Glace Bay on Cape Breton Island killing one miner. This effectively closes the mine permanently, ending years of coal mining in Glace Bay.
- May 8: Cpl. Denis Lortie enters the Quebec National Assembly and opens fire, killing 3 and wounding 13. René Jalbert, sergeant-at-arms of the assembly, succeeds in calming him, for which he will later receive the Cross of Valour.
- May 19: The NHL's Edmonton Oilers win the Stanley Cup defeating the New York Islanders 5–2 at Edmonton and ending the Islanders dynasty. The first in Oilers club history and of a new dynasty.
- June 30: John Turner becomes Canada's seventeenth prime minister replacing the retiring Pierre Trudeau.
- August 12: At the 1984 Summer Olympics held in Los Angeles Canada has its best performance ever, mostly due to the boycott of the games by the Eastern Bloc countries.
- August 31: MuchMusic, Canada's answer to MTV, signs on.
- September 1: TSN The Sports Network, signs on.
- September 3: In protest of the upcoming Papal visit, Thomas Bernard Brigham, a retired American armed forces officer, bombs Montreal's Central Station, killing 3 people and wounding more than 30.
- September 4: Federal election Turner's Liberals are routed as Brian Mulroney wins the largest majority in Canadian history.
- September 9–20: Pope John Paul II tours Canada.
- September 17: Brian Mulroney is sworn in as Canada's eighteenth prime minister.
- October 5: Marc Garneau becomes the first Canadian in space, aboard the Space Shuttle Challenger (41-6).
- November 6: Saskatchewan MLA Colin Thatcher is convicted of the murder of his ex-wife Joanne.
- Richard Nerysoo becomes premier of the Northwest Territories. The territory recognizes aboriginal languages as official languages.
- Labatt introduces the first twist-off cap on a reusable beer bottle.
- Grey Cup: Winnipeg Blue Bombers win 47–17 over the Hamilton Tiger Cats
- Vanier Cup: Guelph Gryphons win 22–13 over the Mount Allison Mounties
- Telelatino Network signs on in October.
Arts and literature
- New books
- Awards
- Film
- Television
Births
Deaths
