| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Fiard | city | Clare | Ireland | 52.59 | -9.82 | 3 | 344 |
| Fiddane | city | Cork | Ireland | 52.11 | -8.58 | 830 | 3145 |
| Fiddane | city | Ireland | 52.73 | -8.34 | 830 | 1250 | |
| Fiddaun | city | Galway | Ireland | 53.02 | -8.86 | 150 | 1009 |
| Fiddaun | city | Galway | Ireland | 53.17 | -8.74 | 223 | 1717 |
| Fiddaun Bridge | city | Kilkenny | Ireland | 52.51 | -7.03 | 830 | 1585 |
| Fiddow Bridge | city | Ireland | 52.33 | -7.32 | 45 | 3296 | |
| Fiddown | city | Kilkenny | Ireland | 52.33 | -7.32 | 29 | 3274 |
| Fieries | city | Kerry | Ireland | 52.17 | -9.60 | 239 | 1932 |
| Fieries | city | Kerry | Ireland | 52.21 | -9.43 | 242 | 3605 |
| Fieries Cross Roads | city | Kerry | Ireland | 52.16 | -9.61 | 236 | 1978 |
| Figart | city | Donegal | Ireland | 54.86 | -7.63 | 196 | 4164 |
| Fighting Cooks Cross Roads | city | Carlow | Ireland | 52.76 | -6.85 | 367 | 2028 |
| Figlash | city | Ireland | 52.37 | -7.45 | 88 | 5382 | |
| Finaghoo | city | Cavan | Ireland | 54.15 | -7.67 | 944 | 1459 |
| Finavarra | city | Clare | Ireland | 53.15 | -9.10 | 45 | 477 |
| Finea | city | An Iarmhi | Ireland | 53.77 | -7.38 | 232 | 829 |
| Finglas | city | Dublin | Ireland | 53.39 | -6.30 | 62 | 199166 |
| Fingreagh | city | Leitrim | Ireland | 54.19 | -8.10 | 374 | 628 |
| Finisklin | city | Galway | Ireland | 53.31 | -9.24 | 413 | 1952 |
| Finlaghtown Great | city | Meath | Ireland | 53.55 | -6.71 | 252 | 3304 |
| Finlaghtown Little | city | Meath | Ireland | 53.55 | -6.70 | 252 | 2876 |
| Finmore Bridge | city | Donegal | Ireland | 54.65 | -8.00 | 830 | 694 |
| Finnabanes | city | Donegal | Ireland | 54.67 | -8.04 | 295 | 1686 |
| Finnahy | city | Ireland | 52.71 | -7.98 | 830 | 1895 | |
| Finnan | city | Kilkenny | Ireland | 52.80 | -7.32 | 830 | 2210 |
| Finnanfield | city | Cork | Ireland | 52.04 | -8.96 | 1184 | 1270 |
| Finnea | city | An Iarmhi | Ireland | 53.77 | -7.38 | 232 | 829 |
| Finned Bridge | city | Sligo | Ireland | 54.29 | -9.00 | 16 | 985 |
| Finnis | city | Cork | Ireland | 51.78 | -8.78 | 249 | 4575 |
| Finniterstown | city | Ireland | 52.52 | -8.81 | 91 | 2752 | |
| Finnow Bridge | city | Cork | Ireland | 52.08 | -9.07 | 830 | 1826 |
| Finny | city | Mayo | Ireland | 53.57 | -9.48 | 193 | 676 |
| Finshoge | city | Wexford | Ireland | 52.37 | -6.89 | 255 | 5647 |
| Fintown | city | Donegal | Ireland | 54.87 | -8.11 | 830 | 310 |
| Finuge | city | Kerry | Ireland | 52.43 | -9.54 | 216 | 4142 |
| Fiodh Alúine | city | Kildare | Ireland | 53.29 | -6.89 | 262 | 3154 |
| Fiodh Ard | city | Ireland | 52.47 | -7.69 | 216 | 2485 | |
| Fiodh Ard | city | Wexford | Ireland | 52.19 | -6.85 | 3 | 1638 |
| Fiodh Duin | city | Kilkenny | Ireland | 52.33 | -7.32 | 29 | 3274 |
| Fiodh an Atha | city | An Iarmhi | Ireland | 53.77 | -7.38 | 232 | 829 |
| Fionasclainn | city | Galway | Ireland | 53.31 | -9.24 | 413 | 1952 |
| Fionnaithe | city | Mayo | Ireland | 53.57 | -9.48 | 193 | 676 |
| Fionnasclainn | city | Galway | Ireland | 53.31 | -9.24 | 413 | 1952 |
| Fionnghlas | city | Dublin | Ireland | 53.39 | -6.30 | 62 | 199166 |
| Fionntra | city | Kerry | Ireland | 52.13 | -10.37 | 0 | 1015 |
| Fionnuig | city | Kerry | Ireland | 52.43 | -9.54 | 216 | 4142 |
| Fionnán | city | Kilkenny | Ireland | 52.80 | -7.32 | 830 | 2210 |
| Fionnúir | city | An Iarmhi | Ireland | 53.59 | -7.19 | 830 | 1314 |
| Firhouse | city | South Dublin | Ireland | 53.28 | -6.34 | 351 | 156453 |
| Firmount | city | Cork | Ireland | 51.98 | -8.70 | 830 | 2287 |
| Firmount Cross Roads | city | Kildare | Ireland | 53.29 | -6.72 | 295 | 8904 |
| Firoda | city | Kilkenny | Ireland | 52.83 | -7.27 | 830 | 2478 |
| Firoda Lower | city | Kilkenny | Ireland | 52.82 | -7.25 | 830 | 3117 |
| Firpark | city | Meath | Ireland | 53.71 | -7.05 | 393 | 1048 |
| Firville | city | Ireland | 53.07 | -8.08 | 229 | 890 | |
| Fisherhill | city | Mayo | Ireland | 53.94 | -9.19 | 85 | 1433 |
| Fisherstown | city | Wexford | Ireland | 52.30 | -6.98 | 59 | 2960 |
| Fisherstreet | city | Clare | Ireland | 53.02 | -9.39 | 164 | 1014 |
| Five Alley | city | Ireland | 52.84 | -8.26 | 242 | 6080 | |
| Five Cross Roads | city | Ireland | 52.07 | -7.93 | 357 | 1167 | |
| Five Cross Roads | city | Wexford | Ireland | 52.28 | -6.79 | 42 | 2346 |
| Five Cross Roads | city | Leitrim | Ireland | 54.20 | -8.29 | 278 | 1380 |
| Five Roads Cross | city | Offaly | Ireland | 53.17 | -7.94 | 321 | 2642 |
| Fivealley | city | Offaly | Ireland | 53.15 | -7.84 | 232 | 859 |
| Fivemilebourne | city | Leitrim | Ireland | 54.27 | -8.34 | 114 | 1079 |
| Fivemilebridge | city | Cork | Ireland | 51.82 | -8.50 | 190 | 17410 |