World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Iskenderun | TRISK | Türkiye |
| Isla de Pascua | CLIPC | Chile |
| Isla Guarello | CLISG | Chile |
| Isla Mujeres | MXISJ | Mexico |
| Isla San Marcos | MXSMI | Mexico |
| Island Falls | USIFL | United States of America (the) |
| Island Lake | CAISL | Canada |
| Island View | ZAIVI | South Africa |
| Islandmagee | GBIMG | United Kingdom |
| Islay | GBISY | United Kingdom |