28th Manitoba Legislature
The members of the 28th Manitoba Legislature were elected in the Manitoba general election held in June 1966. The legislature sat from December 5, 1966, to May 22, 1969.
The Progressive Conservative Party led by Duff Roblin formed the government. Walter Weir became Premier in 1967 after Roblin resigned to run unsuccessfully for the federal Progressive Conservative Party leadership.
Gildas Molgat of the Liberal Party was Leader of the Opposition.
A new sales tax of 5% was introduced effective June 1, 1967.
James Bilton served as speaker for the assembly.
There were three sessions of the 28th Legislature:
| Session | Start | End |
| 1st | December 5, 1966 | May 4, 1967 |
| 2nd | March 7, 1968 | May 25, 1968 |
| 3rd | February 27, 1969 | May 22, 1969 |
Richard Spink Bowles was Lieutenant Governor of Manitoba.
Members of the Assembly
The following members were elected to the assembly in 1966:Notes:
By-elections
By-elections were held to replace members for various reasons:| Electoral district | Member elected | Affiliation | Election date | Reason |
| Turtle Mountain | Edward Dow | Liberal | March 4, 1968 | Results of 1966 election overturned |
| Birtle-Russell | Harry Graham | Progressive Conservative | February 20, 1969 | R Clement resigned to run unsuccessfully for federal seat |
| Churchill | Joseph Borowski | NDP | February 20, 1969 | G Beard resigned October 8, 1968 |
| Morris | Warner Jorgenson | Progressive Conservative | February 20, 1969 | H Shewman died July 13, 1968 |
| Wolseley | Leonard Claydon | Progressive Conservative | February 20, 1969 | D Roblin resigned to run unsuccessfully for federal seat |
Notes: