World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Söderhamn | SESOO | Sweden |
| Söderköping | SESOG | Sweden |
| Södertälje | SESOE | Sweden |
| Sodus Point | USSOD | United States of America (the) |
| Soela | EESOE | Estonia |
| Soengei Kolak | IDSKK | Indonesia |
| Sogndal | NOSOG | Norway |
| Sogo | JPSOG | Japan |
| Sogod/Tacloban | PHSGD | Philippines (the) |
| Sohar | OMSOH | Oman |