| Prio | Original string | Translation | — | 
|---|---|---|---|
| Cape Verde | Cape Verde | Details | |
| Comoros | Comoros | Details | |
| Colombia | Colombia | Details | |
| Cocos (Keeling) Islands | Cocos (Keeling) Islands | Details | |
| Christmas Island | Christmas Island | Details | |
| Congo | Congo | Details | |
| Congo, the Democratic Republic of the | Congo, the Democratic Republic of the | Details | |
Congo, the Democratic Republic of the Congo, the Democratic Republic of the 
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| Cook Islands | Cook Islands | Details | |
| Costa Rica | Costa Rica | Details | |
| Cyprus | Cyprus | Details | |
| Curaçao | Curaçao | Details | |
| Cuba | Cuba | Details | |
| Croatia | Croatia | Details | |
| Côte d'Ivoire | Côte d'Ivoire | Details | |
| Egypt | Egypt | Details | |
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