Vi har så langt registrert 1 300 havner
| Navn | Grunnlagt | | Cairns, Qeensland, Australia | |
| Calais, Frankrike | |
| Calcutta, India | |
| Callao, Peru | |
| Campbellton, Canada | |
| Canada | |
| Canaport, Canada | |
| Canvey, UK | |
| Cap Haitien, Haiti | |
| Cape Breton, Nova Scotia | |
| Cape Cod Canal, Ma. USA | |
| Cape Tormentine, Nova Scotia, Canada | |
| Cape Town, Sør-Afrika | |
| Cardenas, Cuba | |
| Cardiff, Wales, UK | |
| Caripito, Venetzuela | |
| Cartagena, Colombia | |
| Cartagena, Spania | |
| Casablanca, Morocco | |
| Castellamare, Sicilia, Italia | |
| Catania, Sicilia, Italia | |
| Catia la Mar, Venezuela | |
| Cayenne, Fransk Guyana | |
| Cebu | |
| Ceiba, Hunduras | |
