| Years in Canada: | 1777 1778 1779 1780 1781 1782 1783 |
| Centuries: | 17th century · 18th century · 19th century |
| Decades: | 1750s 1760s 1770s 1780s 1790s 1800s 1810s |
| Years: | 1777 1778 1779 1780 1781 1782 1783 |
Events from the year 1780 in Canada.
Incumbents
- Monarch: George III
Governors
- Governor of the Province of Quebec: Frederick Haldimand
- Governor of Nova Scotia: Lord William Campbell
- Commodore-Governor of Newfoundland: John Byron
- Governor of St. John's Island: Walter Patterson
Events
- May 19 – an unusual darkening of the day sky was observed over the New England states and parts of Canada. This has never been explained, though clouds of smoke from massive forest fires are the most likely cause.
- Quakers begin the Underground Railroad to smuggle slaves to freedom in Canada.
Births
- August 2 – Marie-Anne Gaboury, female explorer (d.1875)
- September 17 – Norman McLeod, Presbyterian minister (d.1866)
- November 16 – James FitzGibbon, British colonel who served in Canada for 45 years (d.1863)
- December 1 – Edward Bowen, lawyer, judge and politician (d.1866)
Deaths
- November 28 – Esther Wheelwright, mother superior for Quebec Ursulines.