| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ightermurragh | city | Cork | Ireland | 51.90 | -8.02 | 62 | 2975 |
| Ileclash | city | Cork | Ireland | 52.15 | -8.25 | 173 | 7782 |
| Illane | city | Cork | Ireland | 51.79 | -9.38 | 830 | 455 |
| Inch | city | Cork | Ireland | 51.81 | -8.18 | 13 | 1877 |
| Inch | city | Cork | Ireland | 51.99 | -7.98 | 249 | 1524 |
| Inchamay | city | Cork | Ireland | 52.05 | -8.88 | 997 | 1058 |
| Inchantatane | city | Cork | Ireland | 52.23 | -9.10 | 830 | 904 |
| Inches | city | Cork | Ireland | 52.08 | -9.18 | 830 | 1553 |
| Inchicahan Cross Roads | city | Cork | Ireland | 51.76 | -9.10 | 830 | 2346 |
| Inchigeelagh | city | Cork | Ireland | 51.83 | -9.12 | 830 | 1030 |
| Inchileigh Bridge | city | Cork | Ireland | 52.06 | -9.07 | 830 | 1889 |
| Inchinapallas | city | Cork | Ireland | 52.15 | -8.39 | 137 | 1886 |
| Inchinossig Bridge | city | Cork | Ireland | 51.86 | -9.24 | 830 | 782 |
| Inchintaglin Bridge | city | Cork | Ireland | 51.71 | -9.72 | 308 | 459 |
| Inchisine | city | Cork | Ireland | 51.87 | -9.02 | 396 | 1915 |
| Inis Céin | city | Cork | Ireland | 51.74 | -8.94 | 236 | 1907 |
| Inis Eonáin | city | Cork | Ireland | 51.77 | -8.66 | 232 | 3469 |
| Inishannon | city | Cork | Ireland | 51.77 | -8.66 | 232 | 3469 |
| Inishcarra | city | Cork | Ireland | 51.88 | -8.63 | 223 | 15332 |
| Inishcarra Bridge | city | Cork | Ireland | 51.89 | -8.62 | 219 | 17626 |
| Inishleena | city | Cork | Ireland | 51.91 | -8.69 | 229 | 4518 |
| Innishannon | city | Cork | Ireland | 51.77 | -8.66 | 232 | 3469 |
| Innygraga | city | Cork | Ireland | 51.89 | -8.16 | 249 | 10478 |
| Inse Geimhleach | city | Cork | Ireland | 51.83 | -9.12 | 830 | 1030 |
| Insnasallagh | city | Cork | Ireland | 52.16 | -8.28 | 111 | 7569 |
| Islanday | city | Cork | Ireland | 52.16 | -9.09 | 830 | 1738 |