Humanist Party of Ontario was created in 1994.
Representative Party of Ontario was created in 2004.
Reform Party of Ontario was created in 1989.
Ontario Liberal Party was created in 1857.
Socialist Party of Ontario was created in 2011.
Green Party of Ontario was created in 1983.
Ontario Libertarian Party was created in 1975.
Family Coalition Party of Ontario was created in 1987.
Communist Party of Canada - Ontario - was created in 1940.
Progressive Conservative Party of Ontario was created in 1854.
People's Political Party of Ontario was created in 2011.
Northern Ontario Heritage Party was created in 1977.