| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Cabry | city | Ireland | 55.13 | -7.20 | 72 | 881 | |
| Caherbarnagh | city | Ireland | 52.05 | -9.20 | 1276 | 1294 | |
| Caherlisfrane | city | Ireland | 53.50 | -9.02 | 383 | 1690 | |
| Caherlistrane | city | Ireland | 53.50 | -9.02 | 383 | 1690 | |
| Cahermacun | city | Ireland | 53.08 | -9.20 | 492 | 432 | |
| Caltra | city | Ireland | 53.43 | -8.43 | 246 | 1330 | |
| Caltragh | city | Ireland | 53.60 | -7.93 | 442 | 1193 | |
| Caltragh | city | Ireland | 53.48 | -8.13 | 249 | 1233 | |
| Cappagh | city | Ireland | 53.63 | -8.75 | 219 | 1850 | |
| Cappamore | city | Ireland | 51.90 | -9.62 | 239 | 2226 | |
| Carha | city | Ireland | 54.15 | -9.03 | 216 | 1218 | |
| Carnhill | city | Ireland | 54.27 | -9.80 | 439 | 913 | |
| Carnmalin | city | Ireland | 55.35 | -7.33 | 246 | 896 | |
| Carnowen | city | Ireland | 54.83 | -7.63 | 328 | 3818 | |
| Carrabaun | city | Ireland | 53.55 | -9.02 | 364 | 1498 | |
| Carrickboy | city | Ireland | 53.63 | -7.68 | 308 | 1319 | |
| Carrickmines | city | Ireland | 53.25 | -6.17 | 282 | 113114 | |
| Carrig | city | Ireland | 52.15 | -8.57 | 272 | 2338 | |
| Carrig | city | Ireland | 51.93 | -9.63 | 862 | 1350 | |
| Carrig East | city | Ireland | 51.93 | -9.63 | 862 | 1350 | |
| Carrigan | city | Ireland | 53.88 | -7.40 | 328 | 2314 | |
| Carriganimmy | city | Ireland | 51.97 | -9.03 | 725 | 1163 | |
| Carrigillihy | city | Ireland | 51.53 | -9.12 | 0 | 1247 | |
| Carrowilkin | city | Ireland | 54.02 | -8.77 | 236 | 2032 | |
| Carrowkeel | city | Ireland | 55.12 | -7.20 | 0 | 799 | |
| Carrowkennedy | city | Ireland | 53.70 | -9.55 | 272 | 546 | |
| Carrowmena | city | Ireland | 55.25 | -7.07 | 475 | 1396 | |
| Carrowmenagh | city | Ireland | 55.25 | -7.07 | 475 | 1396 | |
| Carrowmore | city | Ireland | 53.62 | -9.15 | 180 | 1844 | |
| Carrowmore | city | Ireland | 54.25 | -9.28 | 177 | 1353 | |
| Carrowwilkin | city | Ireland | 54.02 | -8.77 | 236 | 2032 | |
| Cashel | city | Ireland | 53.62 | -8.62 | 249 | 1379 | |
| Cashel | city | Ireland | 55.25 | -7.20 | 370 | 2031 | |
| Cashel | city | Ireland | 51.62 | -9.08 | 433 | 1750 | |
| Castle Cary | city | Ireland | 55.17 | -7.10 | 0 | 1103 | |
| Castlecoote | city | Ireland | 53.62 | -8.28 | 236 | 1514 | |
| Castlecor | city | Ireland | 52.20 | -8.80 | 423 | 1587 | |
| Castlemoyle | city | Ireland | 53.50 | -8.75 | 298 | 1661 | |
| Castleplunket | city | Ireland | 53.75 | -8.33 | 301 | 1014 | |
| Castlestrange Bridge | city | Ireland | 53.58 | -8.27 | 226 | 1412 | |
| Cavetown | city | Ireland | 53.93 | -8.25 | 249 | 1154 | |
| Cecilstown | city | Ireland | 52.17 | -8.78 | 305 | 1615 | |
| Churchtown | city | Ireland | 52.07 | -9.68 | 104 | 1470 | |
| Churchtown | city | Ireland | 53.48 | -7.48 | 423 | 1093 | |
| Cill Ala | city | Ireland | 54.20 | -9.22 | 16 | 1521 | |
| Claggan | city | Ireland | 55.23 | -6.98 | 688 | 2005 | |
| Claggan | city | Ireland | 55.20 | -8.00 | 295 | 689 | |
| Claggan | city | Ireland | 53.50 | -9.50 | 206 | 589 | |
| Claggan Lower | city | Ireland | 55.20 | -8.00 | 295 | 689 | |
| Claggan Upper | city | Ireland | 55.20 | -8.00 | 295 | 689 | |
| Clahane | city | Ireland | 52.23 | -9.70 | 685 | 18703 | |
| Clamper Cross | city | Ireland | 52.20 | -9.18 | 898 | 1232 | |
| Clashnabrock | city | Ireland | 52.17 | -8.58 | 229 | 2574 | |
| Cleady | city | Ireland | 51.90 | -9.53 | 216 | 1452 | |
| Cleggan Lower | city | Ireland | 55.20 | -8.00 | 295 | 689 | |
| Cleggan Upper | city | Ireland | 55.20 | -8.00 | 295 | 689 | |
| Cleraun | city | Ireland | 53.55 | -7.95 | 203 | 547 | |
| Cloghaun | city | Ireland | 53.05 | -9.32 | 498 | 1243 | |
| Clogher | city | Ireland | 53.75 | -9.23 | 160 | 1452 | |
| Clogher | city | Ireland | 53.83 | -9.47 | 203 | 4422 | |
| Cloghereen | city | Ireland | 52.03 | -9.48 | 213 | 10166 | |
| Cloghope | city | Ireland | 54.48 | -8.10 | 183 | 1612 | |
| Cloghore | city | Ireland | 54.48 | -8.10 | 183 | 1612 | |
| Clonbern | city | Ireland | 53.57 | -8.63 | 249 | 1297 | |
| Clonbur | city | Ireland | 53.53 | -9.37 | 68 | 780 | |
| Cloncourse Bridge | city | Ireland | 53.00 | -7.38 | 396 | 2080 | |
| Clongarret | city | Ireland | 53.27 | -7.13 | 255 | 1134 | |
| Clonlyon | city | Ireland | 53.28 | -7.88 | 200 | 1887 | |
| Cloonakilleg | city | Ireland | 53.52 | -8.28 | 226 | 1335 | |
| Cloonart | city | Ireland | 53.80 | -7.88 | 216 | 1768 | |
| Cloonbannin | city | Ireland | 52.13 | -9.02 | 459 | 1572 | |
| Clooncah | city | Ireland | 53.70 | -8.10 | 295 | 1122 | |
| Clooncan | city | Ireland | 53.78 | -8.67 | 308 | 943 | |
| Cloondara | city | Ireland | 53.73 | -7.92 | 219 | 1250 | |
| Cloondergan | city | Ireland | 53.65 | -8.82 | 252 | 1550 | |
| Clooneen | city | Ireland | 53.45 | -9.08 | 104 | 2605 | |
| Clooneen | city | Ireland | 53.57 | -8.23 | 226 | 1840 | |
| Clooneen Beg | city | Ireland | 53.57 | -8.23 | 226 | 1840 | |
| Clooneon | city | Ireland | 53.45 | -9.08 | 104 | 2605 | |
| Cloonfad | city | Ireland | 53.68 | -8.73 | 265 | 1444 | |
| Cloonfower | city | Ireland | 53.80 | -8.60 | 229 | 999 | |
| Cloongowla | city | Ireland | 53.63 | -9.20 | 157 | 2972 | |
| Cloonlavis | city | Ireland | 53.80 | -8.97 | 259 | 2301 | |
| Cloonmore | city | Ireland | 53.62 | -8.05 | 203 | 913 | |
| Cloontuskert | city | Ireland | 53.70 | -8.00 | 203 | 1412 | |
| Clydagh | city | Ireland | 53.75 | -8.67 | 318 | 1099 | |
| Cnoc Mhuire | city | Ireland | 53.78 | -8.92 | 259 | 1671 | |
| Collierstown | city | Ireland | 53.65 | -6.35 | 278 | 10765 | |
| Coolacurn | city | Ireland | 53.22 | -8.05 | 183 | 710 | |
| Coolagarybeg | city | Ireland | 53.23 | -7.20 | 275 | 1341 | |
| Coolamoney | city | Ireland | 53.88 | -6.60 | 203 | 3000 | |
| Coolea | city | Ireland | 51.92 | -9.22 | 688 | 957 | |
| Coollegreane | city | Ireland | 54.20 | -8.03 | 209 | 500 | |
| Coollick | city | Ireland | 52.12 | -9.48 | 498 | 4099 | |
| Coolnahay | city | Ireland | 53.53 | -7.47 | 482 | 1114 | |
| Copperalley | city | Ireland | 53.58 | -7.00 | 301 | 1538 | |
| Cordal | city | Ireland | 52.22 | -9.38 | 472 | 1538 | |
| Corgarve | city | Ireland | 52.17 | -8.00 | 472 | 959 | |
| Corglass | city | Ireland | 54.12 | -8.08 | 190 | 732 | |
| Corlea | city | Ireland | 53.62 | -7.87 | 259 | 952 | |
| Corlough | city | Ireland | 54.12 | -7.78 | 252 | 903 | |
| Cornacullew | city | Ireland | 53.88 | -7.72 | 255 | 1431 | |
| Cornageeha | city | Ireland | 53.88 | -7.77 | 236 | 1314 | |
| Cornamona | city | Ireland | 53.52 | -9.45 | 68 | 835 | |
| Corraun | city | Ireland | 53.72 | -8.77 | 239 | 2809 | |
| Correfin | city | Ireland | 53.43 | -8.85 | 108 | 2687 | |
| Corriga | city | Ireland | 53.93 | -7.68 | 236 | 1436 | |
| Corrigo | city | Ireland | 53.93 | -7.68 | 236 | 1436 | |
| Corrofin | city | Ireland | 53.43 | -8.85 | 108 | 2687 | |
| Cortown | city | Ireland | 53.68 | -6.87 | 246 | 7902 | |
| Coumaclavane | city | Ireland | 51.93 | -9.30 | 1007 | 534 | |
| Creeharmore | city | Ireland | 53.48 | -8.27 | 232 | 1104 | |
| Creevagh | city | Ireland | 53.30 | -8.00 | 183 | 1116 | |
| Creevy | city | Ireland | 54.05 | -9.38 | 236 | 860 | |
| Cregganbaun | city | Ireland | 53.70 | -9.82 | 187 | 567 | |
| Creggs | city | Ireland | 53.60 | -8.35 | 242 | 1186 | |
| Croaghan | city | Ireland | 54.02 | -7.55 | 416 | 1682 | |
| Crockfadda | city | Ireland | 54.70 | -8.38 | 308 | 1130 | |
| Croghan | city | Ireland | 53.90 | -8.22 | 249 | 856 | |
| Crookedwood | city | Ireland | 53.60 | -7.28 | 360 | 1431 | |
| Cross | city | Ireland | 53.55 | -9.22 | 114 | 1719 | |
| Cross Keys | city | Ireland | 53.92 | -7.27 | 554 | 2138 | |
| Crossboyne | city | Ireland | 53.68 | -9.00 | 255 | 3392 | |
| Crossea | city | Ireland | 53.67 | -7.63 | 249 | 2177 | |
| Crosserlough | city | Ireland | 53.88 | -7.28 | 498 | 2242 | |
| Crossmount | city | Ireland | 51.93 | -9.45 | 374 | 584 | |
| Crossna | city | Ireland | 54.02 | -8.18 | 249 | 951 | |
| Crosswell | city | Ireland | 53.60 | -8.38 | 239 | 1069 | |
| Crowbane | city | Ireland | 54.70 | -8.50 | 1440 | 866 | |
| Cruckfada | city | Ireland | 54.70 | -8.38 | 308 | 1130 | |
| Cuilmullagh | city | Ireland | 53.97 | -9.30 | 479 | 694 | |
| Cullen | city | Ireland | 52.12 | -9.12 | 505 | 1710 | |
| Culray | city | Ireland | 53.82 | -7.57 | 249 | 1383 | |
| Cuppanagh Bridge | city | Ireland | 53.96 | -8.40 | 249 | 848 | |
| Cur | city | Ireland | 53.52 | -9.60 | 236 | 278 | |
| Curragh West | city | Ireland | 53.65 | -8.65 | 262 | 1341 | |
| Cushaling Bridge | city | Ireland | 53.28 | -7.03 | 246 | 2364 |