World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Alcanar | ESACA | Spain |
| Alcântara | BRACT | Brazil |
| Alcaudete de la Jaya | ESADT | Spain |
| Alcester Island | PGALC | Papua New Guinea |
| Alcoy | PHALC | Philippines (the) |
| Aldeburgh | GBALB | United Kingdom |
| Alderney | GGACI | Guernsey |
| Aldersgate | GBGSR | United Kingdom |
| Aldgate | AUALD | Australia |
| Aldie | USAL7 | United States of America (the) |