World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Naissaare | EENAI | Estonia |
| Naistlaiu Sadam | EENST | Estonia |
| Najaf | IQNJF | Iraq |
| Najat | IQNAS | Iraq |
| Nájera | ESNJE | Spain |
| Nakada | JPNKD | Japan |
| Nakagusuku | JPNAK | Japan |
| Nakahama, Hiroshima | JPNHA | Japan |
| Nakahama, Kyoto | JPNKJ | Japan |
| Nakahama, Tottori | JPNKH | Japan |