The 8th New Brunswick Legislative Assembly represented New Brunswick between January 30, 1821, and 1827.
The assembly sat at the pleasure of the Lieutenant Governor of New Brunswick George S. Smyth. Howard Douglas became lieutenant governor in 1824.
The speaker of the house was selected as William Botsford. In 1824, after Botsford was appointed a judge, Ward Chipman, Jr. was elected speaker. Harry Peters succeeded Chipman as speaker in 1826.
| Electoral District | Name | First elected / previously elected |
|---|---|---|
| Charlotte | Hugh Mackay | 1816 |
| John Campbell | 1819 | |
| Peter Stubs | 1820 | |
| Joseph N. Clarke | 1820 | |
| Kings | John Cougle Vail | 1820 |
| David B. Wetmore | 1816 | |
| Northumberland | Richard Simonds | 1816 |
| Hugh Munro | 1820 | |
| Queens | Samuel Scovil | 1816 |
| William Peters | 1820 | |
| Saint John City | Hugh Johnston, Jr. | 1820 |
| Harry Peters | 1816 | |
| Saint John County | Ward Chipman [a] | 1820 |
| Andrew S. Ritchie | 1820 | |
| John McNeil Wilmot | 1820 | |
| Charles Simonds | 1820 | |
| Robert Parker (1826) | 1826 | |
| Sunbury | Elijah Miles | 1816 |
| Amos Perley [b] | 1820 | |
| William Wilmot (1824) | 1824 | |
| Westmorland | William Botsford [a] | 1813 |
| Rufus Smith | 1816 | |
| Joseph Crandall [c] | 1819 | |
| Benjamin Wilson | 1820 | |
| Malcolm Wilmot (1823) | 1823 | |
| William Crane (1824) | 1824 | |
| York | Peter Fraser | 1809 |
| John Allen | 1809 | |
| John Dow | 1816 | |
| Stair Agnew [d] | 1796 | |
| William Taylor (1822) | 1822 |