1959 Ontario general election

1959 Ontario general election

← 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   LIB 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 12 11 2 Percentage 46.3% 36.6% 16.7% Swing 2.2pp 3.3pp 0.2pp
Premier before election Leslie Frost Progressive Conservative Premier after election Leslie Frost Progressive Conservative

The 1959 Ontario general election 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.^[1]

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.