- Jack's Lake
- Jackfish
- Jacks Lake
- Jackson Arm
- Jackson Bay
- Jackson Manion
- Jackson's Arm
- Jacksons Cove
- Jacksons Landing
- Jacksons Point
- Jacksonville
- Jacola
- Jacquet River
- Jade City
- Jaffa
- Jaffray
- Jaffray And Melick
- Jaffray Melick
- James
- James River Bridge
- Jamestown
- Jane And Finch
- Janetville
- Janeville
- Jans Bay
- Jansen
- Jarratt
- Jarvie
- Jarvis
- Jarvis Bay
- Jasper
- Jasper
- Jasper East
- Jean Cote
- Jean D Or Prairie
- Jean Marie River
- Jeannettes Creek
- Jedburgh
- Jedway
- Jeffrey's
- Jellicoe
- Jellyby
- Jenner
- Jersey Harbour
- Jerseyside
- Jerseyville
- Jeune Landing
- Job's Cove
- Jocelyn
- Jocko Point
- Jockvale
- Joe Batt's Arm
- Joe Batt's Arm-Barr's Islands-Shoal
- Joe Lake
- Joffre
- Joggins
- John D'Or Prairie
- Johnson
- Johnsons Crossing
- Johnston
- Johnstown
- Johnville
- Joliette
- Joly
- Jones Landing
- Jonquiere Kenogami
- Jonquière
- Jordan
- Jordan River
- Jordan River
- Jordan Station
- Jordon River
- Jorgina
- Josephburg
- Joussard
- Joutel
- Joyland Beach
- Judah
- Judique
- Jumping Pound
- Junction Derby
- Junetown
- Juniper
- Juniper Island
- Juniper Station
- Junor
- Juskatla
- Justice