World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Holsloot | NLHSO | Netherlands |
| Holstebro | DKHSB | Denmark |
| Holt | NLHOT | Netherlands |
| Holtenau | DEHTU | Germany |
| Holtheme | NLHME | Netherlands |
| Holwerd | NLHLW | Netherlands |
| Holy Island | GBHYI | United Kingdom |
| Holy Loch | GBHLO | United Kingdom |
| Holyhead | GBHLY | United Kingdom |
| Holyrood | CAHOD | Canada |