Cities
- Madoc ON
- Maitland ON
- Maniwaki QC
- Mar ON
- Markdale ON
- Markham ON
- Marmora ON
- Mattawa ON
- Maynooth ON
- Meaford ON
- Midhurst ON
- Midland ON
- Mildmay ON
- Millbrook ON
- Millhaven ON
- Milton ON
- Milverton ON
- Mindemoya ON
- Minden ON
- Minesing ON
- Minto ON
- Mississauga ON
- Mitchell ON
- Monkland ON
- Mono ON
- Mont-Laurier QC
- Montebello QC
- Moose Creek ON
- Moosehorn MB
- Morrisburg ON
- Mount Albert ON