World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Addu | MVADU | Maldives |
| Ade | JPADE | Japan |
| Adelaide | AUADL | Australia |
| Aden | YEADE | Yemen |
| Adinkerke | BEADK | Belgium |
| Adlavik | CAALK | Canada |
| Adlay/Bislig | PHADL | Philippines (the) |
| Admirali Väikesadam | EEADV | Estonia |
| Ado | JPADO | Japan |
| Ado | NGADO | Nigeria |