Cities and Communities in Southern Ontario
(check also Northern Ontario)
| Hagar | Harrisons Corners | Hepworth | Honeywell Corners |
| Hagersville | Harriston | Hermon | Honeywood |
| Haines Lake | Harrow | Hesson | Honora |
| Hainsville | Harrowsmith | Hiawatha | Hope Bay |
| Haldimand | Hartington | Hickory Corner | Hopetown |
| Haley Station | Hartley | Hickson | Hopeville |
| Haliburton | Hartsmere | High Falls | Hornby |
| Hall Glen | Harwood | Highgate | Horning's Mills |
| Halls Lake | Hastings | Highland Grove | Horseshoe Lake |
| Hallville | Havelock | Hillier | Horseshoe Valley |
| Halton Hills | Hawkesbury | Hillsburgh | Houghton Centre |
| Hamer Bay | Hawkestone | Hilldale | Houseys Rapids |
| Hamilton | Hawkesville | Hillside | Howdenvale |
| Hammond | Hawkins Corner | Hilton | Humphrey |
| Hampton | Hawtrey | Hoards | Huntingford |
| Hanover | Haydon | Hockley | Huntsville |
| Harcourt | Haysville | Holbrook | Huron Heights |
| Hardwood Lake | Head Lake | Holland Centre | Huron Park |
| Harley | Heathcote | Holland Landing | Huron Ridge |
| Harlowe | Heckston | Holly | Hutton Heights |
| Harper | Heidelberg | Holmesville | Huttonville |
| Harpurhey | Hekkla | Holstein | Hyde Park |
| Harrietsville | Henderson | Holt | Hyndford |
| Harrington | Hensall | Holyrood | |
| Harrisburg | Henvey Inlet | Honey Harbour |