| City | Region |
|---|
| ›Mabella | Ontario› |
| ›Mabou | Nova Scotia-Cape Breton Island› |
| ›Mackenzie | Ontario› |
| ›Mackenzie | British Columbia› |
| ›Madoc | Ontario› |
| ›Malahat | British Columbia› |
| ›Malahide | Ontario› |
| ›Malartic | Quebec› |
| ›Mammamattawa | Ontario› |
| ›Manigotagan | Manitoba› |
| ›Manning | Alberta› |
| ›Manson Creek | British Columbia› |
| ›Maple Creek | Saskatchewan› |
| ›Maple Ridge | British Columbia› |
| ›Marathon | Ontario› |
| ›Margie | Alberta› |
| ›Markdale | Ontario› |
| ›Markham | Ontario› |
| ›Marktosis | British Columbia› |
| ›Marlington | Quebec› |
| ›Martin | Ontario› |
| ›Marystown | Newfoundland› |
| ›Mashkode | Ontario› |
| ›Mason Creek | British Columbia› |
| ›Masset | British Columbia› |
| ›Matagami | Quebec› |
| ›Matane | Quebec› |
| ›Matheson Island | Manitoba› |
| ›Matsqui | British Columbia› |
| ›Mayo | Yukon Territory› |
| ›McAdam | New Brunswick› |
| ›McBride | British Columbia› |
| ›McLennan | Alberta› |
| ›McLeod Lake | British Columbia› |
| ›McQuesten | Yukon Territory› |
| ›Mead | Ontario› |
| ›Meadow Lake | Saskatchewan› |
| ›Meaford | Ontario› |
| ›Medicine Hat | Alberta› |
| ›Medstead | Saskatchewan› |
| ›Megantic | Quebec› |
| ›Meldrum Creek | British Columbia› |
| ›Melfort | Saskatchewan› |
| ›Melville | Saskatchewan› |
| ›Menjo | Quebec› |
| ›Merigomish | Nova Scotia› |
| ›Merrickville-Wolford | Ontario› |
| ›Merritt | British Columbia› |
| ›Metagama | Ontario› |
| ›Meteghan | Nova Scotia› |
| ›Metis sur Mer | Quebec› |
| ›Metlakatla | British Columbia› |
| ›Middle River | British Columbia› |
| ›Midland | Ontario› |
| ›Midway | British Columbia› |
| ›Mill Bay | British Columbia› |
| ›Millet | Alberta› |
| ›Milton | Ontario› |
| ›Mingan | Quebec› |
| ›Minnedosa | Manitoba› |
| ›Minto | New Brunswick› |
| ›Minto | Ontario› |
| ›Minton | Saskatchewan› |
| ›Mission | British Columbia› |
| ›Mississauga | Ontario› |
| ›Mississippi Mills | Ontario› |
| ›Missonga | Ontario› |
| ›Mitchell | Ontario› |
| ›Moberly Lake | British Columbia› |
| ›Moncton | New Brunswick› |
| ›Mono | Ontario› |
| ›Mont Joli | Quebec› |
| ›Mont Laurier | Quebec› |
| ›Montague | Prince Edward Island› |
| ›Montmagny | Quebec› |
| ›Montney | British Columbia› |
| ›Montreal | Quebec› |
| ›Montreal Lake | Saskatchewan› |
| ›Montrose | British Columbia› |
| ›Moose Factory | Ontario› |
| ›Moose Jaw | Saskatchewan› |
| ›Moose River | Ontario› |
| ›Morden | Manitoba› |
| ›Morinville | Alberta› |
| ›Morley River | Yukon Territory› |
| ›Morrisburg | Ontario› |
| ›Mount Forest (Mt Forest) | Ontario› |
| ›Mountain Park | Alberta› |
| ›Moyie | British Columbia› |
| ›Mulgrave | Nova Scotia› |
| ›Murdale | British Columbia› |
| ›Muskwa | British Columbia› |
| ›Musquaro | Quebec› |
| ›Musquash | New Brunswick› |
| ›Myrnam | Alberta› |
