| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Caherconlish | city | Ireland | 52.59 | -8.47 | 374 | 2829 | |
| Cahercorner | city | Ireland | 52.53 | -8.52 | 265 | 2291 | |
| Caherlane | city | Ireland | 52.34 | -9.31 | 360 | 3933 | |
| Caherlevoy | city | Ireland | 52.33 | -9.21 | 830 | 1794 | |
| Cahernagh | city | Ireland | 52.53 | -9.14 | 830 | 1545 | |
| Cahernarry | city | Ireland | 52.62 | -8.57 | 265 | 27005 | |
| Cahir Guillamore | city | Ireland | 52.51 | -8.58 | 242 | 2524 | |
| Caislean Ui Chonaill | city | Ireland | 52.71 | -8.50 | 180 | 6835 | |
| Cappach | city | Ireland | 52.56 | -8.91 | 141 | 3163 | |
| Cappagh | city | Ireland | 52.56 | -8.91 | 141 | 3163 | |
| Cappamore | city | Ireland | 52.61 | -8.34 | 213 | 3049 | |
| Cappanahanagh | city | Ireland | 52.67 | -8.44 | 196 | 4314 | |
| Cappananty | city | Ireland | 52.42 | -8.78 | 354 | 1827 | |
| Cappangue | city | Ireland | 52.63 | -8.39 | 177 | 2557 | |
| Carrigeen | city | Ireland | 52.32 | -8.19 | 830 | 1601 | |
| Carrigeen Cross Roads | city | Ireland | 52.35 | -8.48 | 830 | 1816 | |
| Carrigkerry | city | Ireland | 52.49 | -9.15 | 830 | 1340 | |
| Carrow | city | Ireland | 52.31 | -8.26 | 830 | 2347 | |
| Castleconnell | city | Ireland | 52.71 | -8.50 | 180 | 6835 | |
| Castlemahon | city | Ireland | 52.43 | -9.01 | 213 | 5465 | |
| Castlequarter | city | Ireland | 52.30 | -8.24 | 387 | 3173 | |
| Castleroberts | city | Ireland | 52.55 | -8.76 | 88 | 4222 | |
| Castletown | city | Ireland | 52.42 | -8.81 | 830 | 1789 | |
| Cathair Chinn Lis | city | Ireland | 52.59 | -8.47 | 374 | 2829 | |
| Chesterfield | city | Ireland | 52.47 | -9.02 | 177 | 6270 | |
| Churchfield | city | Ireland | 52.67 | -8.77 | 3 | 3772 | |
| Churchtown | city | Ireland | 52.46 | -9.07 | 226 | 6487 | |
| Cill Fhionain | city | Ireland | 52.36 | -8.49 | 830 | 1912 | |
| Cill Mocheallog | city | Ireland | 52.40 | -8.58 | 265 | 3350 | |
| Cill Míde | city | Ireland | 52.41 | -8.92 | 351 | 1861 | |
| Cill Tile | city | Ireland | 52.52 | -8.40 | 334 | 2384 | |
| Clarina | city | Ireland | 52.63 | -8.73 | 19 | 12359 | |
| Clash North | city | Ireland | 52.45 | -9.24 | 830 | 1691 | |
| Clash South | city | Ireland | 52.44 | -9.23 | 830 | 1895 | |
| Clashbane | city | Ireland | 52.57 | -8.43 | 226 | 2049 | |
| Clogghanduff Bridge | city | Ireland | 52.51 | -8.70 | 131 | 2791 | |
| Clogh | city | Ireland | 52.54 | -8.91 | 160 | 3281 | |
| Cloghane Bridge | city | Ireland | 52.59 | -8.60 | 223 | 9065 | |
| Cloghansoun Bridge | city | Ireland | 52.52 | -8.48 | 249 | 2247 | |
| Clogher | city | Ireland | 52.43 | -8.64 | 295 | 2095 | |
| Clogher Bridge | city | Ireland | 52.44 | -8.63 | 351 | 2195 | |
| Clonbrick | city | Ireland | 52.55 | -8.23 | 242 | 2468 | |
| Cloncagh | city | Ireland | 52.46 | -8.93 | 252 | 1506 | |
| Cloonlahard | city | Ireland | 52.53 | -9.22 | 830 | 1463 | |
| Cloonlahard Bridge | city | Ireland | 52.54 | -9.20 | 830 | 1435 | |
| Cloonlusk | city | Ireland | 52.59 | -8.27 | 232 | 2676 | |
| Cloonmore | city | Ireland | 52.36 | -8.94 | 383 | 2068 | |
| Cloonoughter | city | Ireland | 52.57 | -9.25 | 252 | 1548 | |
| Cloonteen | city | Ireland | 52.63 | -8.29 | 249 | 2309 | |
| Cloonty | city | Ireland | 52.57 | -9.15 | 830 | 1900 | |
| Cnoc Áine | city | Ireland | 52.48 | -8.46 | 334 | 2619 | |
| Cooga | city | Ireland | 52.61 | -8.27 | 249 | 2374 | |
| Coolavehy | city | Ireland | 52.30 | -8.46 | 830 | 1452 | |
| Coolboy | city | Ireland | 52.31 | -8.24 | 830 | 2377 | |
| Cooleappagh | city | Ireland | 52.52 | -9.03 | 200 | 1977 | |
| Coollisteige | city | Ireland | 52.72 | -8.54 | 131 | 6214 | |
| Coolnahila | city | Ireland | 52.66 | -8.46 | 187 | 5416 | |
| Coolnamohoge | city | Ireland | 52.31 | -8.29 | 830 | 2098 | |
| Coolnapisha | city | Ireland | 52.57 | -8.30 | 232 | 2891 | |
| Coolygorman | city | Ireland | 52.36 | -9.00 | 308 | 1573 | |
| Coonagh | city | Ireland | 52.66 | -8.69 | 3 | 41433 | |
| Coramore | city | Ireland | 52.64 | -8.76 | 13 | 4990 | |
| Cortnagross | city | Ireland | 52.45 | -9.30 | 830 | 2090 | |
| Courtmatrix | city | Ireland | 52.51 | -8.98 | 111 | 2772 | |
| Crean | city | Ireland | 52.42 | -9.11 | 364 | 3341 | |
| Crecora | city | Ireland | 52.58 | -8.68 | 236 | 8680 | |
| Creeves | city | Ireland | 52.56 | -9.03 | 124 | 1698 | |
| Creggaun | city | Ireland | 52.66 | -8.76 | 3 | 5611 | |
| Croagh | city | Ireland | 52.53 | -8.88 | 141 | 2685 | |
| Cromadh | city | Ireland | 52.52 | -8.72 | 118 | 3119 | |
| Croom | city | Ireland | 52.52 | -8.72 | 118 | 3119 | |
| Cross of the Tree | city | Ireland | 52.42 | -8.38 | 341 | 2167 | |
| Crossalaght | city | Ireland | 52.54 | -8.40 | 364 | 2383 | |
| Cullane | city | Ireland | 52.35 | -8.36 | 830 | 1766 | |
| Cummeen | city | Ireland | 52.55 | -8.81 | 78 | 3328 | |
| Curragh Bridge | city | Ireland | 52.42 | -8.98 | 229 | 2089 | |
| Curraghrothe | city | Ireland | 52.40 | -8.34 | 830 | 2170 | |
| Curraghturk | city | Ireland | 52.36 | -8.33 | 830 | 1895 | |
| Curraheen | city | Ireland | 52.58 | -8.95 | 75 | 2790 | |
| Cush Cross Roads | city | Ireland | 52.39 | -8.45 | 830 | 2278 |