The Leader of the Opposition () in Manitoba is the Member of the Legislative Assembly of Manitoba who leads the party recognized as the Official Opposition. This status generally goes to the leader of the second largest party in the Legislative Assembly.
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.
, the Leader of the Opposition of Manitoba has been Heather Stefanson, the outgoing head of the Progressive Conservative Party of Manitoba.
List of Opposition Leaders
Below is a list of parliamentary opposition leaders in the Legislative Assembly of Manitoba, from 1870 to the present.