World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Sviby | EESVI | Estonia |
| Svistov | BGSVI | Bulgaria |
| Svitlovodsk | UADSK | Ukraine |
| Svolvær | NOSVJ | Norway |
| Svolvær Osan | NOSOS | Norway |
| Swakin | SDSWA | Sudan (the) |
| Swanage | GBSWE | United Kingdom |
| Swansea | GBSWA | United Kingdom |
| Swinoujscie | PLSWI | Poland |
| Swinton | GBSWN | United Kingdom |