World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Chvalatice | CZG44 | Czechia |
| Cibitoke | BICBK | Burundi |
| Cibolo | USZCB | United States of America (the) |
| Cide | TRCID | Türkiye |
| Cienfuegos | CUCFG | Cuba |
| Cierbena | ESCRI | Spain |
| Ciervana | ESCIV | Spain |
| Cigales | ESGVA | Spain |
| Cikande | IDSZA | Indonesia |
| Cilacap (Tjilatjap) | IDCXP | Indonesia |