| 🇨🇩 | flag: Congo - Kinshasa | flag |
| 🇨🇫 | flag: Central African Republic | flag |
| 🇨🇬 | flag: Congo - Brazzaville | flag |
| 🇨🇭 | flag: Switzerland | flag |
| 🇨🇮 | flag: Côte d’Ivoire | flag |
| 🇨🇰 | flag: Cook Islands | flag |
| 🇨🇱 | flag: Chile | flag |
| 🇨🇲 | flag: Cameroon | flag |
| 🇨🇳 | flag: China | flag |
| 🇨🇴 | flag: Colombia | flag |
| 🇨🇵 | flag: Clipperton Island | flag |
| 🇨🇷 | flag: Costa Rica | flag |
| 🇨🇺 | flag: Cuba | flag |
| 🇨🇻 | flag: Cape Verde | flag |
| 🇨🇼 | flag: Curaçao | flag |
| 🇨🇽 | flag: Christmas Island | flag |
| 🇨🇾 | flag: Cyprus | flag |
| 🇨🇿 | flag: Czechia | flag |
| 🇩🇪 | flag: Germany | flag |
| 🇩🇬 | flag: Diego Garcia | flag |