World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Sinpo | KPSIN | Korea, Democratic People's Republic of |
| Sint Andries | NLSAR | Netherlands |
| Sint Eustatius | BQEUX | Bonaire, Sint Eustatius and Saba |
| Sint Katelijne Waver | BESKA | Belgium |
| Sint Maartensvlotbrug | NLSMV | Netherlands |
| Sint Michielsbaai | CWSMB | Curaçao |
| Sint Michielsgestel | NLSMG | Netherlands |
| Sint Nicolaas | AWSNL | Aruba |
| Sint Pancras | NLANC | Netherlands |
| Sint-Amands | BESAS | Belgium |