World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Uchiura, Fukui | JPUCU | Japan |
| Uchiura, Ishikawa | JPUCR | Japan |
| Ucieda | ESUIS | Spain |
| Ucluelet | CAUCL | Canada |
| Udang Natuna Terminal | IDUDG | Indonesia |
| Uddevalla | SEUDD | Sweden |
| Udenheim | DEUH7 | Germany |
| Udo | JPUDD | Japan |
| Udono | JPUDO | Japan |
| Uechi | JPUEC | Japan |