Geographic Name | Country Reference | Latitude (deg min) | Longitude (deg min) |
| Ceram (Seram) Sea | Pacific Ocean | 2 30 S | 129 30 E |
| Ceska Republika (local name for Czech Republic) | Czech Republic | 49 45 N | 15 30 E |
| Ceskoslovensko (former local name for Czechoslovakia) | Czech Republic, Slovakia | 49 00 N | 17 30 E |
| Cetinje (capital city) | Montenegro | 42 24 N | 18 55 E |
| Ceuta (city) | Spain | 35 53 N | 5 19 W |
| Ceylon (former name for Sri Lanka) | Sri Lanka | 7 00 N | 81 00 E |
| Chafarinas, Islas (island) | Spain | 35 12 N | 2 26 W |
| Chagos Archipelago (Oil Islands) | British Indian Ocean Territory | 6 00 S | 71 30 E |
| Challenger Deep (Mariana Trench) | Pacific Ocean | 11 22 N | 142 36 E |
| Channel Islands | Guernsey, Jersey | 49 20 N | 2 20 W |
| Charlotte Amalie (capital) | Virgin Islands | 18 21 N | 64 56 W |
| Chatham Islands | New Zealand | 44 00 S | 176 30 W |
| Chechnya (region; also Chechnia) | Russia | 43 15 N | 45 40 E |
| Cheju Strait | Pacific Ocean | 34 00 N | 126 30 E |
| Cheju-do (island) | Korea, South | 33 20 N | 126 30 E |
| Chengdu (city) | China | 30 43 N | 104 04 E |
| Chennai (city; also Madras) | India | 13 04 N | 80 16 E |
| Chesterfield Islands (Iles Chesterfield) | New Caledonia | 19 52 S | 158 15 E |
| Chihli, Gulf of (see Bo Hai) | Pacific Ocean | 38 30 N | 120 00 E |
| Chiloe (island) | Chile | 42 50 S | 74 00 W |
| China, People's Republic of | China | 35 00 N | 105 00 E |
| China, Republic of | Taiwan | 23 30 N | 121 00 E |