K
- Kaboni
- Kagawong
- Kakabeka Falls
- Kaladar
- Kaministiquia
- Kanata
- Kapuskasing
- Karalash Corners
- Kars
- Kashabowie
- Kaszuby
- Kathmae Siding
- Katimavik
- Katrine
- Kawartha Hideway
- Kawartha Park
- Kawene
- Keady
- Kearney
- Kearns
- Kedron
- Keelerville, Frontenac County
- Keenansville
- Keene
- Keewatin
- Keldon
- Keller Bridge
- Kellys Corner
- Kemble
- Kemptville
- Kenabeek
- Kennaway
- Kennedys
- Kenora
- Kent Bridge
- Kentvale
- Kerwood
- Keswick
- Kettleby
- Kettle Point 44
- Keward
- Keyser
- Khartum
- Kilgorie
- Killaloe
- Killarney
- Killbear Park
- Kilsyth
- Kilworthy
- Kimball
- Kimberley
- Kinburn
- Kincardine
- Kinmount
- King City
- King Creek
- Kinghorn
- Kinghurst
- Kingsbridge
- Kingscote
- Kingston
- Kingsville
- Kingwood
- Kinsale
- Kintail
- Kintore
- Kiosk
- Kirby
- Kirk Cove
- Kirkfield
- Kirkhill
- Kirkland Lake
- Kitchener
- Kleinburg
- Knight's Corners
- Komoka
- Kormak
Read more about this topic: List Of Communities In Ontario