Vorlage:Navigationsleiste Verwaltungsgliederung Ontarios
Einstufige Gemeinden: Brant | Brantford | Chatham-Kent | Greater Sudbury | Haldimand | Hamilton | Kawartha Lakes | Norfolk | Ottawa | Prince Edward | Toronto
Regionalgemeinden: Durham | Halton | Muskoka | Niagara | Oxford | Peel | Waterloo | York
Countys: Bruce | Dufferin | Elgin | Essex | Frontenac | Grey | Haliburton | Hastings | Huron | Lambton | Lanark | Leeds and Grenville | Lennox and Addington | Middlesex | Northumberland | Perth | Peterborough | Prescott and Russell | Renfrew | Simcoe | Stormont, Dundas and Glengarry | Wellington
Distrikte: Algoma | Cochrane | Kenora | Manitoulin | Nipissing | Parry Sound | Rainy River | Sudbury | Thunder Bay | Timiskaming