World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Dulag | PHDUL | Philippines (the) |
| Dulang Marine Terminal | XZDTL | Installations in International Waters |
| Dulas Bay | GBDBY | United Kingdom |
| Duluth | USDLH | United States of America (the) |
| Dumaguete | PHDGT | Philippines (the) |
| Dumai, Sumatra | IDDUM | Indonesia |
| Dumfries | GBDUM | United Kingdom |
| Dumont d'Urville Station | AQDDU | Antarctica |
| Dumyat (Damietta) | EGDAM | Egypt |
| Dun Laoghaire | IEDLG | Ireland |