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Events from the year 1743 in Canada.
Incumbents
- French Monarch: Louis XV
- British and Irish Monarch: George II
Governors
- Governor General of New France: Charles de la Boische, Marquis de Beauharnois
- Colonial Governor of Louisiana: Jean-Baptiste Le Moyne de Bienville then Pierre de Rigaud, Marquis de Vaudreuil-Cavagnial
- Governor of Nova Scotia: Paul Mascarene
- Commodore-Governor of Newfoundland: Thomas Smith
Events
- Concentrated hunting of sea otter by Russia begins.
- Father Claude-Godefroy Coquart joins La Vérendrye at Fort La Reine becoming the first recorded missionary in present-day Manitoba and the first to travel beyond Lake of the Woods.
Deaths
- April 11 - Jean-Baptiste Chardon, jesuit missionary (born 1672).