World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Coverack | GBCOV | United Kingdom |
| Cow Head | CACWH | Canada |
| Cowandilla | AUDIL | Australia |
| Cowaramup | AUCOW | Australia |
| Cowes | GBCOW | United Kingdom |
| Cowichan Bay | CACCB | Canada |
| Cowiche | USYHE | United States of America (the) |
| Coxsackie, Greene | USCS6 | United States of America (the) |
| Coyol | CRCYL | Costa Rica |
| Cozad | USQCZ | United States of America (the) |