World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Ajiro, Okayama | JPAZR | Japan |
| Ajiro, Shizuoka | JPAJR | Japan |
| Ajiro, Tottori | JPAZJ | Japan |
| Ajisu | JPACH | Japan |
| Ajman | AEAJM | United Arab Emirates (the) |
| Ajos | FIAJO | Finland |
| Ajuy | PHAJU | Philippines (the) |
| Akadomari | JPAKD | Japan |
| Akakina | JPAKG | Japan |
| Akaltyn | UZAKT | Uzbekistan |