3rd Manitoba Legislature
The members of the 3rd Manitoba Legislature were elected in the Manitoba general election held in December 1878. The legislature sat from February 1, 1879, to November 26, 1879.
Premier John Norquay with the support of Joseph Royal was able to form a majority government. However, Royal demanded that the government must have the support of a majority among both French-speaking and English-speaking representatives in the assembly. Royal, in partnership with Thomas Scott, attempted to take control of the government. Norquay countered by aligning himself with the English-speaking members of the assembly excluding Scott. A new election was held later in the year.
John Wright Sifton served as speaker for the assembly.
There was one session of the 3rd Legislature:
Joseph-Édouard Cauchon was Lieutenant Governor of Manitoba.
Members of the Assembly
The following members were elected to the assembly in 1878:| Member | Electoral district | Affiliation | First elected / previously elected | No.# of term | |
| Andrew Bourke | Baie St. Paul | Government | 1878 | 1st term | - |
| Kenneth McKenzie | Burnside | Government | 1874 | 2nd term | - |
| John Taylor | Headingly | Government | 1870, 1874 | 3rd term* | - |
| John Drummond | High Bluff | Opposition | 1878 | 1st term | - |
| Alexander Sutherland | Kildonan | Opposition | 1878 | 1st term | - |
| John Stevenson | Pembina | Opposition | 1878 | 1st term | - |
| James Cowan | Portage la Prairie | Independent | 1874 | 2nd term | - |
| Thomas Lusted | Rockwood | Opposition | 1878 | 1st term | - |
| John Gunn | St. Andrews North | Government | 1878 | 1st term | - |
| John Norquay | St. Andrews South | Government | 1870 | 3rd term | - |
| Alphonse Larivière | St. Boniface | Government | 1878 | 1st term | - |
| Alexander Murray | St. Charles | Government | 1874 | 2nd term | - |
| John Wright Sifton | St. Clements | Government | 1878 | 1st term | - |
| Louis Schmidt | St. Francois Xavier East | Government | 1870, 1878 | 2nd term* | - |
| Joseph Royal | St. Francois Xavier West | Government | 1870 | 3rd term | - |
| David Marr Walker | St. James | Government | 1878 | 1st term | - |
| Pierre Delorme | St. Norbert | Government | 1870, 1878 | 2nd term* | - |
| Samuel Clarke Biggs | St. Pauls | Independent | 1878 | 1st term | - |
| Maxime Goulet | St. Vital | Government | 1878 | 1st term | - |
| Joseph Taillefer | Ste. Agathe | Government | 1878 | 1st term | - |
| Charles Nolin | Ste. Anne | Government | 1874 | 2nd term | - |
| Arthur Wellington Ross | Springfield | Opposition | 1878 | 1st term | - |
| Corydon Partlow Brown | Westbourne | Government | 1874 | 2nd term | - |
| Thomas Scott | Winnipeg | Opposition | 1878 | 1st term | - |
Notes: