World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Ichihara | JPICH | Japan |
| Ichikawa | JPICK | Japan |
| Ichikikushikino | JPICO | Japan |
| Idabel | USQIL | United States of America (the) |
| Idhra (Hydra) | GRHYD | Greece |
| Idku | EGIKU | Egypt |
| Iejima/Okinawa | JPIEJ | Japan |
| Ierápetra | GRIER | Greece |
| Ierissos | GRIES | Greece |
| Ieshima, Hyogo | JPIES | Japan |