| Termen/ Term | Nr. apariții/ No. occurrences |
| COREEA DE SUD | 8 |
| CORFU | 2 |
| CORLATA | 1 |
| CORNACCIONE | 1 |
| CORNWALL | 1 |
| CORNWALL LEBANON | 1 |
| CORNY POINT | 1 |
| COROICO | 1 |
| CORSICA | 7 |
| COSTA RICA | 7 |
| COSTARICA | 6 |
| COSTESTI | 1 |
| COSTILA | 1 |
| COTA 1400 | 2 |
| COXANO-NITOXIDOD | 1 |
| COZIA | 2 |
| COZLA | 1 |
| CR | 1 |
| CREEK | 1 |
| CREMONA | 1 |
| CRETA | 2 |
| CRIMEEA | 4 |
| CRIMEIA | 1 |
| CRIVOSIE | 2 |
| CROATIA | 7 |
| CROZET | 5 |
| CS | 245 |
| CS:ADA-KALEN | 1 |
| CS:BAILE HERCULANE | 1 |
| CSS | 1 |
| CT | 275 |
| CU | 31 |
| CU MINA LA REFLUX | 4 |
| CUBA | 96 |
| CUBA(TRINIDAD) | 1 |
| CUBA. | 1 |
| CUENCA | 7 |
| CUENCIA | 3 |
| CULA LUI TUDOR | 1 |
| CUMBERLAND | 3 |
| CURMATURA | 1 |
| CURMATURA BABEI | 1 |
| CUVU | 1 |
| CV | 5 |
| CYCLADE | 1 |
| CYRENAICA | 1 |
| CZERNIAWA ZDROJ | 1 |
| CACHTICE | 1 |
| CADIZ | 1 |
| CAHUL | 1 |