The 9th Parliament of Lower Canada was in session from January 15, 1817, to February 9, 1820. Elections to the Legislative Assembly in Lower Canada had been held in March 1816. All sessions were held at Quebec City.
| Riding | Member | First elected / previously elected |
|---|---|---|
| Bedford | Thomas McCord | 1809, [a] 1816 |
| Buckinghamshire | François Bellet [1] | 1810 |
| Buckinghamshire | Joseph Badeaux | 1810, [b] 1816 |
| Louis Bourdages (1815) | 1804, [c] 1815 | |
| Cornwallis | Joseph Le Vasseur Borgia | 1808 |
| Cornwallis | Joseph Robitaille | 1808 |
| Devon | Joseph-François Couillard-Després | 1814 |
| Devon | François Fournier | 1814 |
| Dorchester | John Davidson | 1814 |
| Dorchester | Jean-Thomas Taschereau | 1812 |
| Effingham | Joseph Malboeuf, dit Beausoleil | 1810 |
| Effingham | Samuel Sherwood | 1814 |
| Gaspé | James Cockburn [d] | 1816 |
| Hampshire | George Waters Allsopp | 1814 |
| Hampshire | François Huot | 1796, 1808 |
| Hertford | Louis Turgeon [e] | 1804, 1816 |
| François Blanchet (1818) | 1809, 1818 | |
| Hertford | Étienne-Ferréol Roy | 1804 |
| Huntingdon | Michael O'Sullivan | 1814 |
| Huntingdon | Austin Cuvillier | 1814 |
| Kent | Pierre Bruneau | 1810 |
| Kent | Denis-Benjamin Viger | 1808 |
| Leinster | Jacques Trullier, dit Lacombe | 1814, 1816 |
| Leinster | Benjamin Beaupré | 1816 |
| Montreal County | James Stuart | 1808, [f] 1811 |
| Montreal County | Augustin Richer | 1814 |
| Montreal East | John Molson | 1816 |
| Montreal East | Louis Roy Portelance | 1804, 1816 |
| Montreal West | Louis-Joseph Papineau | 1808 |
| Montreal West | Félix Vinet, dit Souligny | 1816 |
| Northumberland | Étienne-Claude Lagueux | 1816 |
| Northumberland | Philippe Panet | 1816 |
| Orléans | Charles Blouin | 1810 |
| Quebec County | Louis Gauvreau | 1810 |
| Quebec County | Pierre Brehaut{{efn|died in 1817; James McCallum was elected in a by-election in August 1817.]] | 1814 |
| James McCallum (1817) [g] | 1817 | |
| John Neilson (1818) | 1818 | |
| Quebec (Lower Town) | François Languedoc | 1816 |
| Quebec (Lower Town) | Andrew Stuart | 1814 |
| Quebec (Upper Town) | Claude Dénéchau | 1808 |
| Quebec (Upper Town) | George Vanfelson | 1815 |
| Richelieu | Séraphin Cherrier | 1815 |
| Richelieu | Jean Dessaulles | 1816 |
| Saint-Maurice | Louis Gugy [h] | 1816 |
| Pierre Bureau (1819) | 1819 | |
| Saint-Maurice | Étienne Mayrand | 1816 |
| Surrey | Pierre Amiot | 1813 |
| Surrey | Étienne Duchesnois | 1814 |
| Trois-Rivières | Charles Richard Ogden | 1814 |
| Trois-Rivières | Pierre Vézina | 1816 |
| Warwick | Jacques Deligny | 1814 |
| Warwick | Joseph Bondy, dit Douaire | 1816 |
| William-Henry | Robert Jones | 1814 |
| York | Nicolas-Eustache Lambert Dumont | 1814 |
| York | Jean-Baptiste Ferré | 1815 |