K
- Kenora
- (Regional Municipality of Niagara) Kimbo
- (Huron County) Kingsbridge
- (Ottawa) Kinburn
- (Huron County) Kinburn
- (Bruce County) Kingarf
- (York) King City
- (York) King Creek
- (York) Kinghorn
- (Grey County) Kinghurst
- (Renfrew County) Killaloe
- (Peterborough County) Kimberley Park
- (Grey County) Kimberley
- (Lambton County) Kimball
- (Ottawa) Kilmaurs
- (Middlesex County) Kilmartin
- (Lanark County) Kilmarnock
- (Wellington County) Killean
- (Parry Sound District) Killbear Park
- (Dufferin County) Kilgorie
- (Oxford County) Kintore
- (Wellington County) Kumpfville
- (Perth County) Kuhryville
- (Timiskaming District) Krugerdorf
- (Nipissing District) Klock
- (Perth County) Kirkton
- (Frontenac County) Kirk Cove
- (Durham) Kirby
- (Elgin County) Kintyre
- (Grey County) Kingscote