Seaports
| Seaport Name | Seaport Code | Country |
|---|---|---|
| Iquique | CLIQQ | Chile |
| Inkoo | FIINK | Finland |
| Itea | GRITA | Greece |
| Iraklion | GRHER | Greece |
| Inishtrahull | GBINL | Ireland |
| Imahuru | JPIMU | Japan |
| Imabari | JPIMU | Japan |
| Iyomishima | JPIYM | Japan |
| Iwakuni | JPIWK | Japan |
| Ijmuiden | NLIJM | Netherlands |
| Ilo | PEPIL | Peru |
| Iloilo | PHCRT | Philippines |
| Ilichevsk | SUILK | Russia |
| Inchon | KRINC | South Korea |
| Incheun | KRINC | South Korea |
| Isranfors | SESDK | Sweden |
| Izmit | TRIZT | Turkey |
| Izmir | TRCES | Turkey |
| Istanbul | TRIST | Turkey |
| Iskenderun | TRISK | Turkey |