The governing Ontario Progressive Conservative Party, led by Bill Davis, was re-elected for a twelfth consecutive term in office.

Social Credit leader Reg Gervais announced prior to the election that he planned to run in Nickel Belt, but could not follow through and resigned at a meeting of nominated candidates where John Turmel was appointed interim leader of the Ontario Social Credit Party during the campaign, though there has never been independent confirmation of this (nor is it clear if the Ottawa-area candidacies of Turmel and Raymond Turmel and Serge Girard and Dale Alkerton and Andrew Dynowski were approved by the remaining few members of the official Social Credit Party of Ontario).

Algoma: Algoma—Manitoulin: Armourdale: Beaches—Woodbine: Bellwoods: Brampton: Brantford: Brant—Oxford—Haldimand: Brock: Burlington South: Cambridge: Carleton: Carleton East: Carleton-Grenville: Chatham—Kent: Cochrane North: Cochrane South: Cornwall: Don Mills: Dovercourt: Downsview: Dufferin—Simcoe: Durham East: Durham West: Durham—York: Eglinton: Elgin: Erie: Essex North: Essex South: Etobicoke: Fort William: Frontenac—Addington: Grey: Grey—Bruce: Haldimand—Norfolk: Halton—Burlington: Hamilton Centre: Hamilton East: Hamilton Mountain: Hamilton West: Hastings—Peterborough: High Park—Swansea: Humber: Huron—Bruce: Huron—Middlesex: Kenora: Kent—Elgin: Kingston and the Islands: Kitchener: Kitchener—Wilmot: Lake Nipigon: Lambton: Lanark—Renfrew: Lakeshore: Leeds: Lincoln: London Centre: London North: London South: Middlesex: Mississauga East: Mississauga North: Mississauga South: Muskoka: Niagara Falls: Nickel Belt: Nipissing: Northumberland: Oakville: Oakwood: Oriole: Oshawa: Ottawa Centre: Ottawa East: Ottawa South: Ottawa West: Oxford: Parkdale: Parry Sound: Perth: Peterborough: Port Arthur: Prescott and Russell: Prince Edward—Lennox: Quinte: Rainy River: Renfrew North: Renfrew South: Riverdale: St. Andrew—St.

York South: Donald C. MacDonald resigned his legislative seat in 1982, and a by-election was called for November 4, 1982.

Stormont—Dundas and Glengarry: Osie Villeneuve died in 1983, and a by-election has called on December 15, 1983: Frontenac—Addington: Liberal MPP J. Earl McEwen crossed the floor to join the Progressive Conservatives in 1984.