L
- (Wellington County) Little Lake
- (Algoma) Little Rapids
- (Peterborough County) Little Rock
- (Middlesex County) Littlewood
- (Wellington County) Living Springs
- (Algoma) Livingstone Creek
- (Lanark County) Lloyd
- (Middlesex County) Lobo
- (Huron County) Lochalsh
- (Haliburton County) Lochlin
- (Renfrew County) Lochwinnoch
- (Bruce County) Lockerby
- (Renfrew County) Locksley
- (Middlesex County) Lockwood Park
- (Hastings County) Lodgeroom Corners
- (Perth County) Logan
- (Huron County) Londesborough
- (Rainy River District) Lone Pine
- (Manitoulin District) Long Bay
- (Regional Municipality of Niagara) Long Beach
- (United Counties of Leeds and Grenville) Long Point
- (Middlesex County) Longwood
- (United Counties of Leeds and Grenville) Lords Mills
- (Simcoe County) Loretto
- (Parry Sound District) Lorimer Lake
- (Bruce County) Lorne
- (Sudbury) Lorne
- (Bruce County) Lorne Beach
- (Timiskaming District) Lorrain
- (Hastings County) Lost Channel