K
- Kabaigon
- Kabina
- Kaboni
- Kagawong
- Kahshe Lake
- Kakabeka Falls
- Kaladar
- Kama
- Kaministikwia
- Kaministiqua
- Kaministiquia
- Kamiskotia
- Kanata
- Kapuskasing
- Karalash Corners
- Kars
- Kasabonika
- Kasabonika Lake
- Kashabowie
- Kashechewan
- Kasshabog Lake
- Kaszuby
- Kathmae Siding
- Kathmore
- Katrine
- Kawa
- Kawartha Haven
- Kawartha Heights
- Kawartha Hideaway
- Kawartha Lakes
- Kawartha Park
- Kawene
- Keadon Park
- Keady
- Kearney
- Kearns
- Kedron
- Keego
- Keelerville
- Keelesdale-Eglinton West
- Keemle
- Keenansville
- Keene
- Keewatin
- Keewaydin
- Kee-Way-Win
- Kejick
- Keldon
- Keller Bridge
- Kellers
- Kells
- Kellys Corner
- Kelso
- Kemble
- Kemptville
- Kenabeek
- Kenabutch
- Kendal
- Kendry
- Keneden Park
- Kenhill Beach
- Kenilworth
- Kenmore
- Kennaway
- Kennedy Acres
- Kennedy Bay
- Kennedy Park
- Kennedys
- Kennicott
- Kennisis Lake
- Kenogami Lake
- Kenora
- Kenora 38B
- Kenora, Unorganized
- Kenrei Park
- Kensington-Chinatown
- Kensington Point
- Kenstone Beach
- Kent Bridge
- Kent Centre
- Kentvale
- Kenwell
- Kepler
- Kerns
- Kerr
- Kerr Lake
- Kerr Line
- Kertch
- Kerwood
- Keswick
- Keswick Beach
- Kettleby
- Kettle Point 44
- Kettle's Beach
- Keward
- Key Harbour
- Key Junction
- Key River
- Keyser
- Keyson
- Keystone Camps
- Khartum
- Khiva
- Kidd's Landing
- Kilbirnie
- Kilbride
- Kilcoo Camp
- Kilgorie
- Killaloe
- Killaloe, Hagarty and Richards
- Killarney
- Killbear Park
- Killean
- Kilmanagh
- Kilmarnock
- Kilmartin
- Kilmaurs
- Kilrush
- Kilsyth
- Kilty Switch
- Kilworth
- Kilworthy
- Kimball
- Kimberley
- Kimberley Park
- Kimberlytown
- Kimbo
- Kinburn
- Kinburn, Huron County
- Kincardine
- King
- Kingarf
- King City
- Kingfisher Indian Reserve No. 2A
- Kingfisher Indian Reserve No. 3A
- Kingfisher Lake 1
- Kinghorn
- Kinghorn
- Kinghurst
- King Kirkland
- Kinglake
- King Pitt
- Kingsbridge
- Kingscote
- Kingscourt
- Kingsdale
- Kingston
- Kingston Mills
- Kingsview Village-The Westway
- Kingsville
- Kingsway South
- Kings Wharf
- Kingswood Acres
- Kingwood
- Kinhuron
- Kinkora
- Kinlough
- Kinmount
- Kinnaird
- Kinogama
- Kinsale
- Kintail
- Kintore
- Kintyre
- Kiosk
- Kiowana Beach
- Kippen
- Kirby
- Kirby's Corner
- Kirk
- Kirk Cove
- Kirke
- Kirkfield
- Kirkhill
- Kirkland Lake
- Kirkton
- Kirkwall
- Kishbaugh
- Kitchener
- Kitchenuhmaykoosib
- Kitchenuhmaykoosib Aaki 84 (Big Trout Lake)
- Kitigan
- Kleinburg
- Klie's Beach
- Klondyke
- Klueys Bay
- Knapdale
- Knightington
- Knudsens Corner
- Kolapore
- Komoka
- Kormak
- Kossuth
- Kramer Subdivision
- Krugerdorf
- Kuhryville
- Kukatush
- Kumpfville
- Kurtzville
- Kynoch
