World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Cadiz | USYCZ | United States of America (the) |
| Cadzand | NLCZD | Netherlands |
| Caen | FRCFR | France |
| Caernarfon | GBCNV | United Kingdom |
| Cagayan de Oro, Mindanao | PHCGY | Philippines (the) |
| Cagdianao | PHCDN | Philippines (the) |
| Cagliari | ITCAG | Italy |
| Cahirciveen | IECHE | Ireland |
| Cai Cui Port | VNCCU | Viet Nam |
| Cai Mep | VNTOT | Viet Nam |