World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Kozera | JPKZE | Japan |
| Kozhevnikovo | RUKZH | Russian Federation (the) |
| Kozhikode (ex Calicut) | INCCJ | India |
| Kozmino Port | RUKZM | Russian Federation (the) |
| Kozukushi | JPKZK | Japan |
| Kozuna | JPKOZ | Japan |
| København | DKCPH | Denmark |
| Køge | DKKOG | Denmark |
| Kpeme | TGKPE | Togo |
| Krabbendijke | NLIJK | Netherlands |