World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Marsden Point | NZMAP | New Zealand |
| Marseillan | FRMWR | France |
| Marseille | FRMRS | France |
| Marseilles | USMR2 | United States of America (the) |
| Marsh Harbour | BSMHH | Bahamas |
| Marshall | LRMAR | Liberia |
| Marshall | USNMA | United States of America (the) |
| Marshmeadows/New Ross | IEMAR | Ireland |
| Marstal | DKMRS | Denmark |
| Marstrand | SEMSD | Sweden |