World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Montevideo | UYMVD | Uruguay |
| Montiel | ESMOI | Spain |
| Montignies-sur-Sambre | BEMGS | Belgium |
| Montmartin-sur-Mer | FRMM6 | France |
| Montoir-de-Bretagne | FRMTX | France |
| Montreal | CAMTR | Canada |
| Montréal-Est | CAMRE | Canada |
| Montrose | GBMON | United Kingdom |
| Mõntu | EEMNT | Estonia |
| Mõntu Väikelaevade Sadam | EEMNV | Estonia |