| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Fraine | city | Meath | Ireland | 53.60 | -6.94 | 295 | 3222 |
| Frankeen's Cross Roads | city | Ireland | 52.19 | -7.26 | 242 | 2278 | |
| Frankeen’s Cross Roads | city | Ireland | 52.19 | -7.26 | 242 | 2278 | |
| Frankford | city | Offaly | Ireland | 53.17 | -7.73 | 255 | 1897 |
| Frankfort | city | Kilkenny | Ireland | 52.46 | -7.42 | 830 | 1191 |
| Freemount | city | Cork | Ireland | 52.27 | -8.88 | 830 | 1369 |
| Freemount | city | Kerry | Ireland | 52.41 | -9.59 | 209 | 1949 |
| Freffans Great | city | Meath | Ireland | 53.53 | -6.73 | 255 | 5083 |
| Freffans Little | city | Meath | Ireland | 53.53 | -6.76 | 249 | 7354 |
| Frenchfort | city | Galway | Ireland | 53.28 | -8.90 | 45 | 6143 |
| Frenchpark | city | Roscommon | Ireland | 53.87 | -8.40 | 246 | 1063 |
| Frenchrurze | city | Cork | Ireland | 51.81 | -8.38 | 206 | 15467 |
| Freneystown | city | Kilkenny | Ireland | 52.68 | -7.12 | 830 | 1524 |
| Freshford | city | Kilkenny | Ireland | 52.73 | -7.40 | 360 | 1863 |
| Frevanagh | city | An Iarmhi | Ireland | 53.34 | -7.47 | 259 | 3733 |
| Freynestown | city | Wicklow | Ireland | 53.01 | -6.69 | 830 | 2472 |
| Friarsfield | city | Ireland | 52.49 | -8.13 | 830 | 6553 | |
| Friarsgrange | city | Ireland | 52.47 | -7.65 | 321 | 2133 | |
| Friarspark | city | Meath | Ireland | 53.55 | -6.77 | 196 | 7386 |
| Friarspark | city | Meath | Ireland | 53.58 | -6.80 | 252 | 7229 |
| Friarstown | city | Leitrim | Ireland | 54.23 | -8.32 | 157 | 1129 |
| Friarstown | city | Ireland | 52.55 | -8.54 | 216 | 3810 | |
| Friarstown | city | Ireland | 52.60 | -8.63 | 177 | 19785 | |
| Friarstown Bridge | city | Carlow | Ireland | 52.84 | -6.81 | 324 | 2164 |
| Froe | city | Cork | Ireland | 51.61 | -9.05 | 830 | 2136 |
| Frogmore | city | Kerry | Ireland | 52.28 | -9.77 | 0 | 8743 |
| Frosses | city | Donegal | Ireland | 54.67 | -8.23 | 239 | 1805 |