World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Ugusu | JPUGU | Japan |
| Uig | GBUIG | United Kingdom |
| Uimaharju | FIUIM | Finland |
| Uisusadam | EEUIS | Estonia |
| Uitbergen | BEUIT | Belgium |
| Uitermeer | NLUTR | Netherlands |
| Uitgeest | NLUTG | Netherlands |
| Ujina | JPUJI | Japan |
| Ujiyamada | JPUJY | Japan |
| Újpest | HUUPS | Hungary |