This is a list of townships in the Canadian province of Ontario. Townships are listed by census division.

Northern Ontario

Northeastern Ontario

Algoma District

Historical/Geographic Townships Current Municipalities Unorganized Areas

Cochrane District

Historical/Geographic Townships Current Municipalities Unorganized Areas

Manitoulin District

Historical/Geographic Townships Current Municipalities Unorganized Areas

Nipissing District

Historical/Geographic Townships Current Municipalities Unorganized Areas

Parry Sound District

Historical/Geographic Townships Current Municipalities Unorganized Areas

Sudbury District

Historical/Geographic Townships Current Municipalities Unorganized Areas

Timiskaming District

Historical/Geographic Townships Current Municipalities Unorganized Areas

Muskoka District Municipality

Historical/Geographic Townships Current Municipalities

Northwestern Ontario

Kenora District

Historical/Geographic Townships Current Municipalities Unorganized Areas

Rainy River District

Historical/Geographic Townships Current Municipalities Unorganized Areas

Thunder Bay District

Historical/Geographic Townships Current Municipalities Unorganized Areas

Southern Ontario

Central Ontario

Dufferin County

Historical Townships Current Municipalities

Haliburton County

Historical/Geographic Townships Current Municipalities

Hastings County

Historical/Geographic Townships Current Municipalities

Northumberland County

Historical Townships Current Municipalities

Peterborough County

Historical Townships Current Municipalities

Simcoe County

Historical Townships Current Municipalities

City of Kawartha Lakes

Historical Townships Current Municipality

Prince Edward County

Historical Townships Current Municipality

Eastern Ontario

Frontenac County

Historical Townships Current Municipalities

Lanark County

Historical Townships Current Municipalities

Leeds and Grenville United Counties

Historical townships Current Municipalities

Lennox and Addington County

Historical Townships Current Municipalities

Prescott and Russell United Counties

Historical Townships/Municipalities Current Municipalities

Renfrew County

Historical Townships Current Municipalities

Stormont, Dundas and Glengarry United Counties

Historical Townships Current Municipalities

City of Ottawa

Historical Townships Current Municipality

Golden Horseshoe

Regional Municipality of Durham

Historical Townships Current Municipalities

Regional Municipality of Halton

Historical Townships Current Municipalities

Regional Municipality of Niagara

Historical Townships Current Municipalities

Regional Municipality of Peel

Historical Townships Current Municipalities

Regional Municipality of York

The section of York County north of Metro Toronto eventually became the Regional Municipality of York, and York County was dissolved. Historical Townships Current Municipalities

City of Hamilton

Historical Townships Current Municipality

York County and Metropolitan Toronto

Historical Townships In 1953, York Country was split. Metropolitan Toronto was formed by severing from York County: and several small municipalities: These were dissolved in 1967 into the townships, which became boroughs. Metro Toronto was amalgamated in 1998 into:

Southwestern Ontario

Bruce County

Historical Townships Current Municipalities

Elgin County

Historical Townships Current Municipalities

Essex County

Historical Townships Current Municipalities

Grey County

Historical Townships Current Municipalities

Huron County

Historical Townships Current Municipalities

Lambton County

Historical Townships Current Municipalities

Middlesex County

Historical Townships Current Municipalities

Perth County

Historical Townships Current Municipalities

Wellington County

Historical Townships Current Municipalities

Oxford County

Historical Townships Current Municipalities

Regional Municipality of Waterloo

Historical Townships Current Municipalities

Brant County

Historical Townships Current Municipality

Municipality of Chatham-Kent

Historical Townships Current Municipality

Haldimand County

Historical Townships Current Municipality

Norfolk County

Historical Townships Current Municipality