H
- Habermehl
- Haddo
- Hagar
- Hagarty
- Hagermans Corners
- Hagersville
- Hagey
- Hagles Corners
- Haileybury
- Haines Lake
- Hainsville
- Haldane Hill
- Haldimand
- Haley Station
- Halfway
- Halfway House Corners
- Halfway Point
- Haliburton
- Hallebourg
- Hallecks
- Hallowell
- Hall's Glen
- Halls Mills
- Halpenny
- Halsteads Bay
- Halton Hills
- Hamilton
- Hammertown
- Hammond
- Hampden
- Hampshire Mills
- Hampton
- Hanmer
- Hannon
- Hanover
- Happy Hollow
- Happy Landing
- Happy Valley, Greater Sudbury
- Happy Valley, York Regional Municipality
- Harburn
- Harcourt
- Hardwood Lake
- Harkaway
- Harley
- Harlock
- Harlowe
- Harrington
- Harrington West
- Harriston
- Harrow
- Harrowsmith
- Hartfell
- Harwood
- Hastings
- Hatchley
- Havelock
- Hawkes
- Hawkesbury
- Hawkestone
- Hawkesville
- Hawkins Corner
- Hawk Junction
- Hay's Shore
- Hazeldean
- Hazzards Corners
- Head Lake
- Hearst
- Heathcote
- Heckston
- Heidelberg
- Hemlock
- Henderson
- Henrys Corners
- Hensall
- Hempstock Mill
- Hepworth
- Hereward
- Heritage Park
- Heron Bay
- Herron's Mills
- Heyden
- Hiam
- Hidden Valley
- Highland Grove
- Hillcrest, Prince Edward County, Ontario; Hillcrest, Norfolk County, Ontario
- Hillsburgh
- Hillsdale
- Hilly Grove
- Hilton
- Hilton Beach
- Hockley
- Hodgson
- Hogg
- Holford
- Holland
- Holland Centre
- Holland Landing
- Holleford
- Holly
- Holly Park
- Holmesville
- Holstein
- Honey Harbour
- Honeywood
- Hood
- Hope
- Hopetown
- Hopeville
- Hornby
- Hornepayne
- Horning's Mills
- Hotham
- Hotspur
- Howdenvale
- Howick
- Huckabones Corner
- Hudon
- Huffs Corners
- Hughes
- Hungry Hollow
- Huntsville
- Hurdville
- Hurkett
- Hutton
- Hybla
- Hydro Glen
Read more about this topic: List Of Communities In Ontario