| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Chamberlainstown | city | Meath | Ireland | 53.68 | -6.92 | 272 | 2931 |
| Chambers Bridge | city | Kildare | Ireland | 53.39 | -6.65 | 252 | 9070 |
| Chamberstown | city | Meath | Ireland | 53.73 | -6.66 | 830 | 2817 |
| Chanonrock | city | Lu | Ireland | 53.97 | -6.55 | 134 | 3110 |
| Chanonstown | city | An Iarmhi | Ireland | 53.55 | -7.15 | 830 | 2041 |
| Chapel | city | Wexford | Ireland | 52.44 | -6.70 | 242 | 2296 |
| Chapel Land | city | Meath | Ireland | 53.61 | -6.95 | 308 | 3057 |
| Chapel Street | city | Sligo | Ireland | 54.22 | -8.66 | 259 | 919 |
| Chapelbride | city | Meath | Ireland | 53.71 | -6.93 | 275 | 6233 |
| Chapelizod | city | Dublin | Ireland | 53.35 | -6.35 | 52 | 205919 |
| Chapelmidway | city | Fingal | Ireland | 53.46 | -6.31 | 157 | 15831 |
| Chapelstown | city | Carlow | Ireland | 52.83 | -6.90 | 216 | 19622 |
| Chapeltown | city | Kerry | Ireland | 52.28 | -9.83 | 9 | 2066 |
| Chapeltown | city | Kerry | Ireland | 51.91 | -10.33 | 0 | 911 |
| Charlesfort | city | Sligo | Ireland | 54.25 | -8.86 | 154 | 830 |
| Charlesmont | city | Cork | Ireland | 51.87 | -8.41 | 180 | 63605 |
| Charless Bridge | city | Cork | Ireland | 52.10 | -9.10 | 396 | 1613 |
| Charlestown | city | Mayo | Ireland | 53.96 | -8.79 | 249 | 1782 |
| Charlestown | city | Offaly | Ireland | 53.34 | -7.60 | 232 | 4211 |
| Charleville | city | Cork | Ireland | 52.35 | -8.68 | 357 | 4410 |
| Chatsworth | city | Kilkenny | Ireland | 52.88 | -7.18 | 830 | 2017 |
| Cheallúrach | city | Dun Laoghaire-Rathdown | Ireland | 53.30 | -6.24 | 242 | 211571 |
| Cheathru na gCloch | city | Mayo | Ireland | 54.12 | -8.98 | 830 | 855 |
| Cheekpoint | city | Ireland | 52.27 | -7.00 | 3 | 4559 | |
| Cherryorchard Bridge | city | Wexford | Ireland | 52.51 | -6.58 | 170 | 10648 |
| Cherryville | city | Kildare | Ireland | 53.16 | -6.97 | 364 | 3876 |
| Chesterfield | city | Ireland | 52.47 | -9.02 | 177 | 6270 | |
| Chimneyfield | city | Cork | Ireland | 52.06 | -8.47 | 830 | 1133 |
| Christianstown | city | An Iarmhi | Ireland | 53.67 | -7.18 | 830 | 1325 |
| Church Cross | city | Cork | Ireland | 51.54 | -9.35 | 3 | 1725 |
| Church Hill | city | Donegal | Ireland | 54.98 | -7.87 | 242 | 960 |
| Church Town | city | Donegal | Ireland | 54.96 | -7.47 | 187 | 2760 |
| Church Village | city | Mayo | Ireland | 54.00 | -9.07 | 246 | 1627 |
| Churchfield | city | Ireland | 52.67 | -8.77 | 3 | 3772 | |
| Churchtown | city | An Iarmhi | Ireland | 53.48 | -7.48 | 830 | 1093 |
| Churchtown | city | Ireland | 52.46 | -9.07 | 226 | 6487 | |
| Churchtown | city | Cork | Ireland | 52.27 | -8.73 | 830 | 1577 |
| Churchtown | city | Wexford | Ireland | 52.19 | -6.35 | 0 | 2005 |
| Churchtown | city | Wexford | Ireland | 52.13 | -6.92 | 0 | 158 |
| Churchtown | city | Kerry | Ireland | 52.07 | -9.68 | 104 | 1470 |
| Churchtown | city | Cork | Ireland | 51.91 | -8.13 | 209 | 9526 |
| Churchtown | city | Cork | Ireland | 51.83 | -8.08 | 19 | 2057 |
| Churchtown | city | Wexford | Ireland | 52.20 | -6.43 | 3 | 1692 |
| Churchtown | city | Wexford | Ireland | 52.25 | -6.40 | 3 | 3585 |
| Churchtown | city | Clare | Ireland | 52.72 | -9.40 | 91 | 1344 |
| Churchtown | city | Kildare | Ireland | 53.01 | -7.05 | 232 | 2167 |
| Churchtown | city | Meath | Ireland | 53.62 | -6.76 | 242 | 4765 |