| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Caherbaun | city | Ireland | 52.33 | -7.74 | 830 | 13562 | |
| Calaiste | city | Ireland | 52.05 | -7.60 | 239 | 7579 | |
| Callaghane | city | Ireland | 52.21 | -7.03 | 193 | 9615 | |
| Callaghane Bridge | city | Ireland | 52.21 | -7.03 | 193 | 9615 | |
| Canty | city | Ireland | 52.10 | -7.74 | 200 | 1321 | |
| Cappagh | city | Ireland | 52.12 | -7.76 | 203 | 1343 | |
| Cappoquin | city | Ireland | 52.15 | -7.86 | 190 | 1779 | |
| Carnglass | city | Ireland | 52.04 | -7.88 | 45 | 947 | |
| Carrickahilla Cross Roads | city | Ireland | 52.14 | -7.47 | 170 | 1536 | |
| Carrickataggle | city | Ireland | 52.16 | -7.62 | 931 | 1416 | |
| Carrickavrantry | city | Ireland | 52.17 | -7.19 | 242 | 8564 | |
| Carrickbrean | city | Ireland | 52.03 | -7.57 | 0 | 844 | |
| Carricknannnoge | city | Ireland | 52.16 | -7.61 | 1066 | 3028 | |
| Carrickphilip | city | Ireland | 52.20 | -7.30 | 285 | 2015 | |
| Carrigard Cross Roads | city | Ireland | 52.10 | -7.72 | 203 | 1633 | |
| Carrigcastle | city | Ireland | 52.17 | -7.40 | 72 | 1799 | |
| Carrigeen | city | Ireland | 52.02 | -7.90 | 219 | 967 | |
| Carrigeen | city | Ireland | 52.03 | -7.70 | 830 | 986 | |
| Carrigeen | city | Ireland | 52.23 | -7.41 | 413 | 2017 | |
| Carrigninnower | city | Ireland | 52.17 | -7.93 | 410 | 1751 | |
| Carroll's Cross Roads | city | Ireland | 52.23 | -7.34 | 830 | 1691 | |
| Carroll’s Cross Roads | city | Ireland | 52.23 | -7.34 | 830 | 1691 | |
| Carrowgarriff | city | Ireland | 52.14 | -7.71 | 324 | 1461 | |
| Castlequarter | city | Ireland | 52.28 | -7.75 | 275 | 1312 | |
| Castlerichard | city | Ireland | 52.13 | -7.98 | 187 | 2292 | |
| Ceapach Choinn | city | Ireland | 52.15 | -7.86 | 190 | 1779 | |
| Cheekpoint | city | Ireland | 52.27 | -7.00 | 3 | 4559 | |
| Cill Cholmáin | city | Ireland | 51.99 | -7.69 | 236 | 869 | |
| Clais Mhor | city | Ireland | 52.00 | -7.82 | 150 | 2131 | |
| Clashanahy | city | Ireland | 51.96 | -7.79 | 3 | 2425 | |
| Clashmore | city | Ireland | 52.00 | -7.82 | 150 | 2131 | |
| Clashnadarriv | city | Ireland | 52.11 | -7.81 | 141 | 1587 | |
| Clashnalochan | city | Ireland | 52.10 | -7.62 | 6 | 9981 | |
| Clashnugoneen | city | Ireland | 52.13 | -7.80 | 170 | 1563 | |
| Clashroe | city | Ireland | 52.31 | -7.34 | 380 | 3703 | |
| Cleary's Cross Roads | city | Ireland | 51.97 | -7.78 | 183 | 1568 | |
| Cleary’s Cross Roads | city | Ireland | 51.97 | -7.78 | 183 | 1568 | |
| Clodiagh Bridge | city | Ireland | 52.29 | -7.30 | 118 | 2828 | |
| Clogheen | city | Ireland | 52.28 | -7.74 | 255 | 1522 | |
| Clohernagh | city | Ireland | 52.17 | -7.08 | 0 | 4368 | |
| Clondonnell | city | Ireland | 52.31 | -7.57 | 830 | 303 | |
| Clonea | city | Ireland | 52.28 | -7.44 | 278 | 1507 | |
| Clooncogaile | city | Ireland | 52.18 | -7.72 | 830 | 1097 | |
| Coill Mhic Thomáisín | city | Ireland | 52.21 | -7.43 | 173 | 1946 | |
| Colligan Bridge | city | Ireland | 52.13 | -7.68 | 291 | 3183 | |
| Comeraghmountain | city | Ireland | 52.22 | -7.58 | 1115 | 687 | |
| Cool | city | Ireland | 52.16 | -8.00 | 314 | 1018 | |
| Cool | city | Ireland | 52.16 | -7.67 | 400 | 1022 | |
| Coolagarthov | city | Ireland | 52.19 | -7.81 | 830 | 1404 | |
| Coolanheen | city | Ireland | 52.13 | -7.82 | 131 | 1736 | |
| Coolbagh | city | Ireland | 52.03 | -7.85 | 246 | 1412 | |
| Coolbeggan | city | Ireland | 52.04 | -7.94 | 830 | 953 | |
| Cooldrishoge | city | Ireland | 52.16 | -7.93 | 193 | 1964 | |
| Coolishal | city | Ireland | 52.34 | -7.59 | 830 | 957 | |
| Coolnabeasoon | city | Ireland | 52.24 | -7.74 | 830 | 1104 | |
| Coolnalingady | city | Ireland | 52.27 | -7.53 | 1187 | 681 | |
| Coolnasmear | city | Ireland | 52.14 | -7.67 | 380 | 1822 | |
| Coolowen | city | Ireland | 52.12 | -8.03 | 180 | 1570 | |
| Coolroe | city | Ireland | 52.06 | -7.84 | 249 | 1369 | |
| Coolydoody | city | Ireland | 52.12 | -8.05 | 246 | 1533 | |
| Coolydoody North | city | Ireland | 52.13 | -8.05 | 272 | 1337 | |
| Corbally | city | Ireland | 52.15 | -7.07 | 13 | 1670 | |
| Corgarve | city | Ireland | 52.17 | -8.00 | 830 | 959 | |
| Corrandromaun Cross Roads | city | Ireland | 52.05 | -7.94 | 830 | 953 | |
| Coumalocha | city | Ireland | 52.24 | -7.58 | 2017 | 589 | |
| Coumaraglinmountain | city | Ireland | 52.18 | -7.62 | 1145 | 612 | |
| Countygate | city | Ireland | 52.15 | -8.15 | 98 | 1087 | |
| Crobally Lower | city | Ireland | 51.98 | -7.66 | 131 | 516 | |
| Crooke | city | Ireland | 52.22 | -6.97 | 0 | 2402 | |
| Cross | city | Ireland | 52.03 | -7.80 | 337 | 1253 | |
| Cruabhaile Íochtarach | city | Ireland | 51.98 | -7.66 | 131 | 516 | |
| Crushea | city | Ireland | 51.97 | -7.71 | 22 | 1197 | |
| Cullenagh | city | Ireland | 52.24 | -7.27 | 232 | 2890 | |
| Currabaha | city | Ireland | 52.14 | -7.68 | 291 | 2039 | |
| Curragh | city | Ireland | 51.96 | -7.72 | 0 | 1181 | |
| Curraghacna | city | Ireland | 52.17 | -8.04 | 830 | 1099 | |
| Curraghateskin | city | Ireland | 52.25 | -7.72 | 830 | 1216 | |
| Curraghballintlea | city | Ireland | 52.32 | -7.37 | 830 | 6527 | |
| Curraghduff | city | Ireland | 52.31 | -7.44 | 242 | 5215 | |
| Curraghnamaddree | city | Ireland | 52.16 | -7.70 | 830 | 1138 | |
| Curraheen | city | Ireland | 52.29 | -7.55 | 830 | 431 | |
| Curraheen North | city | Ireland | 52.12 | -7.97 | 249 | 2466 | |
| Curraheen South | city | Ireland | 52.10 | -7.97 | 88 | 2625 |