World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Invergordon | GBIVG | United Kingdom |
| Inverie | GBINR | United Kingdom |
| Inverkeithing | GBINK | United Kingdom |
| Inverkip | GBIVK | United Kingdom |
| Invermere | CAIVM | Canada |
| Inverness | GBINV | United Kingdom |
| Inverness | USQIS | United States of America (the) |
| Inzersdorf an der Traisen | ATZIN | Austria |
| Ioco | CAIOC | Canada |
| Iokanka | RUIOK | Russian Federation (the) |