| * | (Gen. Jeffrey Amherst) | 1760 |
| * | Gen. James Murray | 1763 |
| P. Aemilius Irving (President) | 1766 |
| * | Gen. Sir Guy Carleton (Lieutenant Governor and Acting Governor General) | 1766 |
| H.G. Cramahé | 1770 |
| * | Gen. Sir Guy Carleton | 1774 |
| * | Gen. Frederick Haldimand | 1778 |
| Henry Hamilton (Lieutenant Governor) | 1784 |
| Henry Hope (Lieutenant Governor) | 1785 |
| * | Lord Dorchester (Guy Carleton) | 1786 |
| ON THE DIVISION OF THE TWO CANADAS |
| Alured Clarke | 1791 |
| * | Lord Dorchester | 1793 |
| * | Maj.-Gen. Robert Prescott | 1796 |
| Sir. R.S. Milnes | 1799 |
| Hon. Thomas Dunn | 1805 |
| * | Sir James H. Craig | 1807 |
| Hon. Thomas Dunn | 1811 |
| * | Sir George Prevost | 1811 |
| Sir Gordon Drummond | 1815 |
| Gen. John Wilson | 1816 |
| * | Sir John Sherbrooke | 1816 |
| * | Duke of Richmond | 1818 |
| Sir James Monk | 1819 |
| Sir Peregrine Maitland | 1820 |
| * | Earl of Dalhousie | 1820 |
| Sir. F.N. Burton | 1824 |
| * | Earl of Dalhousie | 1825 |
| Sir James Kempt | 1828 |
| * | Lord Alymer | 1830 |
| * | Earl of Gosford | 1835 |
| * | Sir John Colborne | 1838 |
| * | Earl of Durham | 1838 |
| * | C. Poulett Thomson (Lord Sydenham) | 1839 |
| UNDER THE UNION |
| * | Baron Sydenham (Hon. Charles Poulett Thomson) | 1841 |
| R.D. Jackson (Administrator) | 1841 |
| * | Sir Charles Bagot | 1842 |
| * | Sir Charles Metcalfe | 1843 |
| * | Earl Cathcart | 1845 |
| * | Earl of Elgin | 1847 |
| W. Rowan (Administrator) | 1853 |
| * | Sir Edmund Head | 1854 |
| * | Lord Viscount Monck | 1861 |
| UNDER THE CONFEDERATION |
| * | The Rt. Hon. Viscount Monck, G.C.M.G. | 1867 |
| * | The Rt. Hon. Lord Lisgar, G.C.M.G. (Sir John Young) | 1868 |
| * | The Rt. Hon. The Earl of Dufferin, K.P., K.C.B., G.C.M.G. | 1872 |
| * | The Rt. Hon. The Marquis of Lome, K.T., G.C.M.G., P.C. | 1878 |
| * | The Rt. Hon. The Marquis of Lansdowne, G.C.M.G. | 1883 |
| * | The Rt. Hon. Lord Stanley of Preston, G.C.B. | 1888 |
| * | The Rt. Hon. The Earl of Minto, G.C.M.G. | 1898 |
| * | The Rt. Hon. The Earl of Aberdeen, K.T., G.C.M.G. | 1893 |
| * | The Rt. Hon. The Earl Grey, G.C.M.G. | 1904 |
| * | Field Marshal, H.R.H., The Duke of Connaught, K.C., G.C.M.G. | 1911 |
| —— |
| Those not marked * acted only as administrators. When a governor had acted as administrator immediately before becoming governor, the earlier date is given. The names of all the ad interim administrators are not given. |