World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Catoira | ESCOI | Spain |
| Catterline | GBCCE | United Kingdom |
| Cattolica | ITCCL | Italy |
| Caucedo | DOCAU | Dominican Republic |
| Caufield North | AUCUN | Australia |
| Caumont-sur-Garonne | FRCQG | France |
| Cauneille | FRUNL | France |
| Causeway Bay | HKCWB | Hong Kong |
| Caution Bay | PGCAU | Papua New Guinea |
| Cave City | USCCS | United States of America (the) |