World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Snizort | GBSZT | United Kingdom |
| Snodland | GBSDL | United Kingdom |
| Soalala | MGDWB | Madagascar |
| Soap Lake | USSE3 | United States of America (the) |
| Sobra | HRSBR | Croatia |
| Sobradelo | ESSL8 | Spain |
| Sochi | RUAER | Russian Federation (the) |
| Sociedad Portuaria Regional Cartagena | COSPC | Colombia |
| Soda Springs | USYSS | United States of America (the) |
| Sodegaura | JPSDU | Japan |