1959 Ontario general election

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Ontario general election, 1959

← 1955 June 11, 1959 1963 →

98 seats in the 26th Legislative Assembly of Ontario
50 seats were needed for a majority
  First party Second party Third party
  Leslie Frost Premier of Ontario.jpg LIB Donald C. Macdonald crop.JPG
Leader Leslie Frost John Wintermeyer Donald C. MacDonald
Party Progressive Conservative Liberal Co-operative Commonwealth
Leader since April 27, 1949 April 20, 1958 November 21, 1953
Leader's seat Victoria Waterloo North York South
Last election 83 11 3
Seats won 71 22 5
Seat change Decrease12 Increase11 Increase2
Percentage 46.3% 36.6% 16.7%
Swing Decrease2.2pp Increase3.3pp Increase0.2pp

Premier before election

Leslie Frost
Progressive Conservative


Leslie Frost
Progressive Conservative

The Ontario general election of 1959 was held on June 11, 1959, to elect the 98 members of the 26th Legislative Assembly of Ontario (Members of Provincial Parliament, or "MPPs") of the Province of Ontario, Canada.

The Ontario Progressive Conservative Party, led by Leslie Frost, won a sixth consecutive term in office, and maintained its majority in the legislature, although it lost 12 of the 83 seats it had won in the previous election.

The Ontario Liberal Party, led by John Wintermeyer, increased its caucus from 11 to 22 members, and continued in the role of official opposition. Liberal-Labour MPP Albert Wren was re-elected and continued to sit with the Liberal caucus. Wren died in 1961 and was succeeded in a by-election by Robert Gibson.

The social democratic Co-operative Commonwealth Federation (CCF), led by Donald C. MacDonald, won two additional seats, for a total of five.


  Party Leader 1955 Elected % change Popular vote
% change
  Progressive Conservative Leslie Frost 83 71 -14.5% 46.3% -2.2%
  Liberal John Wintermeyer 10 21 +110% 36.6% +3.3%
  Liberal-Labour 1 1 -
  Co-operative Commonwealth Donald C. MacDonald 3 5 +66.7% 16.7% +0.2%
  PC Independent   1 *      
Total 98 98 - 100%  

See also[edit]