World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Skulte | LVSKU | Latvia |
| Skuru (Pohjankuru) | FIPOH | Finland |
| Skuthamn | SESKN | Sweden |
| Skutskär | SESSR | Sweden |
| Skutviken | FISKU | Finland |
| Skye | AUSKY | Australia |
| Slagentangen | NOSLG | Norway |
| Slano | HRSLA | Croatia |
| Slatina | CZSTA | Czechia |
| Slatine | HRSLT | Croatia |