H
- (Bruce County) Hopeness
- (Grey County) Hopeville
- (Dufferin County) Horning's Mills
- (Parry Sound District) Horseshoe Lake
- (Haliburton County) Horseshoe Lake
- (Simcoe County) Horseshoe Valley
- (Parry Sound District) Hotham
- (Haliburton County) Hotspur
- (Haliburton County) Howland
- (Renfrew County) Huckabones Corners
- (Timiskaming District) Hudson
- (Lambton County) Huffs Corners
- (Hastings County) Hughes
- (Parry Sound District) Humphrey
- (Hastings County) Hungerford
- (Ottawa) Hunt Club
- (Ottawa) Hunt Club Park
- (Oxford County) Huntingford
- (Ottawa) Huntley
- (Renfrew County) Hurds Lake
- (Parry Sound District) Hurdville
- (Bruce County) Huron Ridge
- (United Counties of Leeds and Grenville) Hutchins Corners
- (Grey County) Hutchisons Corners
- (Huron County) Hutton Heights
- (Hastings County) Hybla
- (Thunder Bay District) Hymers
- (Renfrew County) Hyndford
- (United Counties of Leeds and Grenville) Hyndman
- (Simcoe County) Hobart