World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Dunfanaghy | IEDFY | Ireland |
| Dung Quat | VNDQT | Viet Nam |
| Dungarvan | IEDGV | Ireland |
| Dungeness | GBDSS | United Kingdom |
| Dunkerque | FRDKK | France |
| Dunkirk | USDKK | United States of America (the) |
| Dunmore | USDU3 | United States of America (the) |
| Dunmore East | IEDNM | Ireland |
| Dunnellon | USDFU | United States of America (the) |
| Dunoon | GBDNU | United Kingdom |