Leadership conventions and leadership challenges in the Ontario New Democratic Party (previously known as the Co-operative Commonwealth Federation, Ontario Section).
Ontario CCF Leadership Convention, 1942
(Held on April 3, 1942.)
(Note: The vote totals do not appear to have been announced.)
Ontario CCF Leadership Challenge, 1946
Ontario CCF Leadership Convention, 1953
(Held on November 21, 1953.)
First ballot:
Second ballot:
(Note: These totals are taken from an interview with Donald C. MacDonald several years after the convention. They do not appear to have been announced at the convention itself.)
Ontario NDP Leadership Convention, 1961
(Held on October 8, 1961.)
Ontario NDP Leadership Challenge, 1968
(Held on November 17, 1968 in Kitchener, Ontario.)
Ontario NDP Leadership Convention, 1970
(Held on October 4, 1970.)
(Note: Douglas Campbell challenged Stephen Lewis for the party's leadership in 1972, without success.)
Ontario NDP Leadership Convention, 1978
(Held on February 5, 1978.)
First ballot:
Second ballot:
Ontario NDP Leadership Convention, 1982
(Held on February 7, 1982.)
Ontario NDP Leadership Challenge, 1986
(Held on June 22, 1986 in Hamilton, Ontario.)
Ontario NDP Leadership Convention, 1996
(Held on June 22, 1996 in Hamilton, Ontario.)
First ballot:
Second ballot:
Third ballot:
(Note: There were eighty spoiled ballots on the final count, mostly from disgruntled supporters of Kormos.)