Leader of the Opposition (Manitoba)
William Alexander Macdonald was the first officially recognized Leader of the Opposition in Manitoba although Rodmond Roblin is considered to have been the de facto opposition leader from 1890 until he lost his seat in the 1892 provincial election.
Note: This list is incomplete; there are gaps between some leaders.
- W.A. Macdonald was the first officially recognized leader of the opposition and held the post until his election to the legislature was voided in 1893.
- Davidson was the second officially recognized leader of the opposition and held the post until his election to the legislature was voided in 1894.
- It is unclear whether Fisher was de facto or de jure Opposition leader. It is also unclear whether he joined the Conservative Party at some point.
- Hugh John Macdonald was the party's official leader from 1897 but did not have a seat in the legislature so Roblin remained official opposition leader.
- Edward Brown was the Liberal Party's leader from 1906 to 1908 but did not have a seat in the legislature. It is unclear whether Mickle remained Official Opposition leader during this period, whether the position was assigned to another MLA, or whether it became vacant.
- Despite having less seats than the Independent Farmers following the 1920 provincial election, the Conservatives remained the official opposition. The Conservative leader Richard G. Willis did not win a seat in the election, so it is unknown who served as Leader of the Opposition
- Stubbs was the only sitting opposition MLA for a period in 1940 after all the remaining opposition parties joined John Bracken's wartime coalition government. It's unclear whether he was given the title of Leader of the Official Opposition or whether he retained such a title after Social Credit MLA Salome Halldorson and Conservatives John Poole and Huntly Ketchen left the governing coalition to sit on the opposition bench prior to the 1941 general election.
- "Leaders of Opposition - Manitoba". Parliament of Canada. Retrieved 2012-10-18.