word | | Country name |
| Collectivity | Saint Pierre and Miquelon | conventional long form: Territorial Collectivity of Saint Pierre and Miquelon conventional short form: Saint Pierre and Miquelon local long form: Departement de Saint-Pierre et Miquelon local short form: Saint-Pierre et ... |
| Colombia | Colombia | conventional long form: Republic of Colombia conventional short form: Colombia local long form: Republica de Colombia local short form: Colombia |
| Colony | French Polynesia | ... form: Overseas Lands of French Polynesia conventional short form: French Polynesia local long form: Pays d'outre-mer de la Polynesie Francaise local short form: Polynesie Francaise former: French Colony of Oceania |
| Commonwealth | Australia | conventional long form: Commonwealth of Australia conventional short form: Australia |
| Commonwealth | Bahamas, The | conventional long form: Commonwealth of The Bahamas conventional short form: The Bahamas |
| Commonwealth | Dominica | conventional long form: Commonwealth of Dominica conventional short form: Dominica |
| Commonwealth | Northern Mariana Islands | conventional long form: Commonwealth of the Northern Mariana Islands conventional short form: Northern Mariana Islands abbreviation: CNMI former: Trust Territory of the Pacific Islands, Mariana Islands District |
| Commonwealth | Puerto Rico | conventional long form: Commonwealth of Puerto Rico conventional short form: Puerto Rico |
| community | Cyprus | ... local long form: Kypriaki Dimokratia/Kibris Cumhuriyeti local short form: Kypros/Kibris note: the Turkish Cypriot community, which administers the northern part of the island, refers to itself as the "Turkish Republic ... |
| Comores | Comoros | ... of the Comoros conventional short form: Comoros local long form: Udzima wa Komori (Comorian); Union des Comores (French); Jumhuriyat al Qamar al Muttahidah (Arabic) local short form: Komori (Comorian); Comores (French); Juzur ... |
| Comorian | Comoros | ... long form: Union of the Comoros conventional short form: Comoros local long form: Udzima wa Komori (Comorian); Union des Comores (French); Jumhuriyat al Qamar al Muttahidah (Arabic) local short form: Komori (Comorian ... |