| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Cartenstown | city | An Iarmhi | Ireland | 53.59 | -7.12 | 403 | 1680 |
| Carter's Bridge | city | Donegal | Ireland | 54.64 | -8.09 | 134 | 4580 |
| Carter’s Bridge | city | Donegal | Ireland | 54.64 | -8.09 | 134 | 4580 |
| Cartland Bridge | city | Offaly | Ireland | 53.34 | -7.11 | 351 | 4060 |
| Carton | city | Kildare | Ireland | 53.39 | -6.56 | 209 | 19719 |
| Cartron | city | Galway | Ireland | 53.20 | -8.67 | 236 | 1490 |
| Cartron | city | Mayo | Ireland | 54.13 | -10.09 | 0 | 637 |
| Cartron | city | Mayo | Ireland | 53.82 | -9.15 | 275 | 1920 |
| Cartronduff | city | Mayo | Ireland | 53.86 | -9.41 | 226 | 1292 |
| Cartrongarv | city | Galway | Ireland | 53.15 | -8.92 | 39 | 1573 |
| Cartrongilbert | city | Mayo | Ireland | 54.09 | -10.09 | 0 | 516 |
| Cartronnagilta | city | Cavan | Ireland | 54.11 | -7.77 | 252 | 1049 |
| Cartronplank | city | Sligo | Ireland | 54.42 | -8.45 | 6 | 1382 |
| Cartur Ghilbeirt | city | Mayo | Ireland | 54.09 | -10.09 | 0 | 516 |
| Carty's Corner | city | Wicklow | Ireland | 52.87 | -6.27 | 830 | 2221 |
| Carty’s Corner | city | Wicklow | Ireland | 52.87 | -6.27 | 830 | 2221 |