World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Struandale | ZASTR | South Africa |
| Struer | DKSTR | Denmark |
| Stryn | NOSTR | Norway |
| Strynø | DKSNO | Denmark |
| Stuartfield | GBSFU | United Kingdom |
| Stubbekøbing | DKSBK | Denmark |
| Studland | GBSJY | United Kingdom |
| Studstrupværkets Havn | DKSSV | Denmark |
| Studsvik | SESDS | Sweden |
| Stugsund | SESTU | Sweden |