World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Itozaki | JPITO | Japan |
| Itsukushima | JPITS | Japan |
| Itteren | NLITR | Netherlands |
| Ittre (Itter) | BEITR | Belgium |
| Iturriotz | ESITR | Spain |
| Itzehoe | DEITZ | Germany |
| Iuka | USIUK | United States of America (the) |
| Iurreta | ESIUA | Spain |
| Ivanovo | RUIVO | Russian Federation (the) |
| Ivigtut | GLIUT | Greenland |