| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Cansado | city | Dakhlet Nouadhibou | Mauritania | 20.85 | -17.05 | 88 | 321 |
| Casba des Ait Maouin | city | Mauritania | 19.65 | -12.32 | 997 | 0 | |
| Casbah des Ait Maouine | city | Mauritania | 19.65 | -12.32 | 997 | 0 | |
| Cfaira | city | Adrar | Mauritania | 20.19 | -13.28 | 416 | 0 |
| Chbariat | city | Trarza | Mauritania | 16.83 | -14.90 | 101 | 596 |
| Chegga | city | Tiris Zemmour | Mauritania | 25.37 | -5.79 | 1669 | 0 |
| Chelka Ould Bannahi | city | Assaba | Mauritania | 15.97 | -11.29 | 413 | 298 |
| Chelkha Balé | city | Gorgol | Mauritania | 16.04 | -12.65 | 196 | 688 |
| Chelkha Dakhna | city | Guidimaka | Mauritania | 15.48 | -11.73 | 150 | 945 |
| Chelkhat Ghiarhoum | city | Gorgol | Mauritania | 16.19 | -12.45 | 183 | 585 |
| Chelkhat Ould Bannahi | city | Assaba | Mauritania | 15.97 | -11.29 | 413 | 298 |
| Chelkhat Rhiarhoum | city | Gorgol | Mauritania | 16.19 | -12.45 | 183 | 585 |
| Chelrhat Rhiarhoum | city | Gorgol | Mauritania | 16.19 | -12.45 | 183 | 585 |
| Chemaya | city | Mauritania | 17.02 | -10.07 | 974 | 149 | |
| Cheïka-Louaré | city | Guidimaka | Mauritania | 15.46 | -12.21 | 275 | 596 |
| Chig Louteidatt | city | Assaba | Mauritania | 15.99 | -11.35 | 236 | 298 |
| Chig Sidi Mahmoud | city | Assaba | Mauritania | 15.92 | -11.38 | 334 | 298 |
| Chig el Outeidat | city | Assaba | Mauritania | 15.99 | -11.35 | 236 | 298 |
| Chikdam | city | Adrar | Mauritania | 21.47 | -11.33 | 2050 | 0 |
| Chinguetti | city | Adrar | Mauritania | 20.44 | -12.26 | 990 | 0 |
| Chkata | city | Assaba | Mauritania | 15.29 | -11.01 | 830 | 322 |
| Chogar | city | Brakna | Mauritania | 17.33 | -13.67 | 219 | 149 |
| Chogar el Akhal | city | Brakna | Mauritania | 17.33 | -13.62 | 226 | 149 |
| Chogâr el Akhdar | city | Brakna | Mauritania | 17.32 | -13.65 | 219 | 149 |
| Chorfa | city | Gorgol | Mauritania | 15.85 | -12.39 | 167 | 596 |
| Choufiye | city | Hodh ech Chargui | Mauritania | 16.59 | -7.26 | 862 | 15966 |
| Choum | city | Adrar | Mauritania | 21.29 | -13.06 | 1158 | 0 |
| Chèbar | city | Hodh ech Chargui | Mauritania | 15.84 | -7.22 | 885 | 298 |
| Cité Cansado | city | Dakhlet Nouadhibou | Mauritania | 20.85 | -17.05 | 88 | 321 |
| Civé | city | Gorgol | Mauritania | 15.70 | -13.21 | 42 | 3921 |
| Cleilihiyat | city | Hodh El Gharbi | Mauritania | 16.43 | -9.47 | 830 | 149 |
| Coppolani | city | Nouakchott Ouest | Mauritania | 18.32 | -16.04 | 29 | 305 |
| Coumba Ndao | city | Guidimaka | Mauritania | 15.00 | -12.18 | 144 | 596 |
| Coumta N'Dao | city | Guidimaka | Mauritania | 15.00 | -12.18 | 144 | 596 |
| Coumta N’Dao | city | Guidimaka | Mauritania | 15.00 | -12.18 | 144 | 596 |
| Crampel | city | Mauritania | 24.43 | -8.80 | 971 | 0 | |
| Ctal ed Daya ed Dakhna | city | Adrar | Mauritania | 20.36 | -13.79 | 830 | 0 |