List of joint premiers of the Province of Canada

This is a list of the joint premiers of the Province of Canada, who were the heads of government of the Province of Canada from the 1841 unification of Upper Canada and Lower Canada until Confederation in 1867.

Each administration was led by two men; after Sydenham's Ministry, one from Canada West (now Ontario) and one from Canada East (now Quebec). Officially, one of them at any given time had the title of Premier, while the other had the title of Deputy.

Colour key

  Tories (Lower Canada Tories, Château Clique , Upper Canada Tories, Family Compact)

   Reformers

  Conservatives ( Parti bleu , Liberal-Conservative Party)

  Liberals (Clear Grits, Parti rouge , Liberal Party)

Sydenham's Ministry

Conservative leader					Reform leader
	Deputy premier William Draper (1801–1877)		Family Compact	5 Feb. 1841 – 12 Jan. 1842		Premier Samuel Harrison [1] (1802–1867)		Reform	5 Feb. 1841 – 12 Jan. 1842

Premiers: before responsible government

Premier from Canada West					Premier from Canada East
	Premier William Draper (1801–1877)		Family Compact	12 Jan. 1842 – 14 Sept. 1842		Deputy premier Charles Richard Ogden (1791–1866)		Château Clique	12 Jan. 1842 – 14 Sept. 1842
	Deputy premier Robert Baldwin (1804–1858)		Reform	26 Sept. 1842 – 27 Nov. 1843		Premier Sir Louis-Hippolyte Lafontaine (1807–1864)		Reform	26 Sept. 1842 – 27 Nov. 1843
vacant [2]				27 Nov. 1843 – 12 Dec. 1843		Acting premier [2] Sir Dominick Daly (1789–1868)			27 Nov. 1843 – 12 Dec. 1843
	Premier William Draper (1801–1877)		Family Compact	12 Dec. 1843 – 27 May 1847		Deputy premier Denis-Benjamin Viger (1774–1861)		Château Clique	12 Dec. 1843 – 17 June 1846
						Deputy premier Denis-Benjamin Papineau (1789–1854)		Château Clique	17 June 1846 – 7 December 1847
	Premier Henry Sherwood (1807–1855)		Tories	28 May 1847 – 10 Mar. 1848
					vacant [3]				7 Dec. 1847 – 10 Mar. 1848

Premiers: after responsible government

Premier from Canada West					Premier from Canada East
	Deputy premier Robert Baldwin (1804–1858)		Reform	11 Mar. 1848 – 28 Oct. 1851		Premier Sir Louis-Hippolyte Lafontaine (1807–1864)		Reform	11 Mar. 1848 – 28 Oct. 1851
	Premier Sir Francis Hincks (1807–1885)		Reform	28 Oct. 1851 – 11 Sept. 1854		Deputy premier Augustin-Norbert Morin (1803–1865)		Reform	28 Oct. 1851 – 27 Jan. 1855
	Premier Sir Allan Napier MacNab (1798–1862)		Tories	11 Sept. 1854 – 24 May 1856
						Deputy premier Sir Étienne-Paschal Taché (1795–1865)		Parti bleu	27 Jan. 1855 – 24 May 1856
	Deputy premier Sir John A. Macdonald (1815–1891)		Tories	24 May 1856 – 26 Nov. 1857		Premier			24 May 1856 – 26 Nov. 1857
	Premier			26 Nov. 1857 – 2 Aug. 1858		Deputy premier Sir George-Étienne Cartier (1814–1873)		Parti bleu	26 Nov. 1857 – 2 Aug. 1858
	Premier George Brown (1818–1880)		Clear Grits	2 Aug. 1858 – 6 Aug. 1858		Deputy premier Antoine-Aimé Dorion (1818–1891)		Parti rouge	2 Aug. 1858 – 6 Aug. 1858
	Deputy premier Sir John A. Macdonald (1815–1891)		Tories	6 Aug. 1858 – 24 May 1862		Premier Sir George-Étienne Cartier (1814–1873)		Parti bleu	6 Aug. 1858 – 24 May 1862
	Premier John Sandfield Macdonald (1812–1872)		Liberal	24 May 1862 – 30 May 1864		Deputy premier Louis-Victor Sicotte (1812–1889)		Liberal	24 May 1862 – 15 May 1863
						Deputy premier Antoine-Aimé Dorion (1818–1891)		Liberal	15 May 1863 – 30 May 1864
	Deputy premier Sir John A. Macdonald (1815–1891)		Liberal- Conservative	30 May 1864 – 30 June 1867		Premier Sir Étienne-Paschal Taché (1795–1865)		Liberal- Conservative	30 May 1864 – 30 July 1865
						Premier Sir Narcisse-Fortunat Belleau (1808–1894)		Liberal- Conservative	30 July 1865 – 30 June 1867

Notes

1. This was a coalition of the moderate wings of the conservative and reform factions, rather than a regionally-based one; French-Canadians were deliberately excluded. Also, given Lord Sydenham's preponderant role in assembling this ministry, it might be more accurate to describe Harrison and Draper as co-leaders rather than co-premiers.
2. All members of the governing Lafontaine-Baldwin coalition, except Daly, resigned in a protest over unapproved patronage appointments by the British-appointed governor: "the Metcalfe crisis". Daly would continue on as a member of the successor cabinet, headed by Draper.
3. While Sherwood had some Franco support in Canada East, none rise to the level of co-Premier after Papineau's departure 7 December 1847