| Code | Name | Region |
|---|---|---|
| CANLB | Neilburg | SK |
| CANS3 | Neil's Harbour | NS |
| CANLS | Nelson | BC |
| CAMKK | Muirkirk | ON |
| CAMUL | Mulgrave | NS |
| CAMRU | Mulmur | ON |
| CAMUA | Mundare | AB |
| CAMVE | Murdochville | QC |
| CAYML | Murray Bay | QC |
| CAMUH | Murray Harbour | PE |
| CAMUR | Murray River | PE |
| CAYQA | Muskoka | ON |
| CAMSA | Muskrat Dam | ON |
| CAMUS | Musquodoboit Harbour | NS |
| CAMYR | Myrtle | MB |
| CANAC | Nackawic | NB |
| CANCM | Naicam | SK |
| CANAI | Nain | NL |
| CAYQN | Nakina | ON |
| CANAK | Nakusp | BC |
| CANMO | Namao | AB |
| CANMP | Nampa | AB |
| CAZNU | Namu | BC |
| CAMOP | Morell | PE |
| CAMHT | Morin Heights | QC |
| CAMRV | Morinville | AB |
| CAMRS | Morris | MB |
| CAMOB | Morrisburg | ON |
| CAMSE | Morse | SK |
| CAXSY | Mossley | ON |
| CAYMD | Mould Bay | NT |
| CAMBI | Mount Albion | PE |
| CAMNA | Mount Arlington Heights | NL |
| CAMBY | Mount Brydges | ON |
| CAMOI | Mount Currie | BC |
| CAMEG | Mount Elgin | ON |
| CAMTF | Mount Forest | ON |
| CAMHO | Mount Hope | ON |
| CAMPE | Mount Pearl | NL |
| CAMPS | Mount Pleasant | ON |
| CAMOS | Mount Stewart | PE |
| CAMUC | Mount Uniacke | NS |
| CAMVW | Mountain View | AB |
| CAMGN | Montmagny | QC |
| CAMNY | Montney | BC |
| CAMTR | Montreal | QC |
| CAYUL | Montreal-dorval Apt | QC |
| CAMRE | Montreal-est | QC |
| CAMRN | Montreal-nord | QC |
| CA8MT | Montreal-ouest | QC |