World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Madalena (Madalena do Pico) | PTMAD | Portugal |
| Madalena do Mar | PTMDM | Portugal |
| Madang | PGMAG | Papua New Guinea |
| Madantsane | ZAMD3 | South Africa |
| Madaum/Davao | PHMAD | Philippines (the) |
| Madeira Beach | USEIF | United States of America (the) |
| Madison Park | USYMD | United States of America (the) |
| Madisonville | USINV | United States of America (the) |
| Madre de Deus | BRMDD | Brazil |
| Madridejos | ESMRJ | Spain |