World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Sehestedt/Eider | DESEH | Germany |
| Sehnde | DESNE | Germany |
| Seibu | JPSEB | Japan |
| Seifhennersdorf | DEYSF | Germany |
| Seigaura | JPSEG | Japan |
| Seilles | BESES | Belgium |
| Sejerø | DKSEO | Denmark |
| Sejingkat, Sarawak | MYSEJ | Malaysia |
| Seki | JPSEI | Japan |
| Sekinehama | JPSEK | Japan |