| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Foberadora | city | Ireland | 52.59 | -7.90 | 249 | 1908 | |
| Fochla | city | An Iarmhi | Ireland | 53.63 | -7.33 | 262 | 1446 |
| Fodeen | city | Meath | Ireland | 53.58 | -6.61 | 830 | 3049 |
| Fodeens | city | Kildare | Ireland | 53.24 | -6.55 | 830 | 5526 |
| Fodry | city | Clare | Ireland | 52.58 | -9.89 | 3 | 168 |
| Foghill | city | Mayo | Ireland | 54.26 | -9.25 | 13 | 1078 |
| Foher | city | Cork | Ireland | 51.62 | -10.09 | 239 | 321 |
| Foherlagh | city | Cork | Ireland | 51.57 | -9.36 | 249 | 1364 |
| Foilacamin | city | Ireland | 52.64 | -7.57 | 830 | 1540 | |
| Foiladaun | city | Cork | Ireland | 52.26 | -9.16 | 994 | 776 |
| Foilagoule | city | Ireland | 52.67 | -8.04 | 987 | 1063 | |
| Foilahumera | city | Ireland | 51.90 | -9.28 | 1007 | 815 | |
| Foilakill | city | Cork | Ireland | 51.63 | -9.65 | 328 | 384 |
| Foilanprisoon | city | Ireland | 52.23 | -7.55 | 1669 | 736 | |
| Foilbeg | city | Cork | Ireland | 51.55 | -9.79 | 124 | 151 |
| Foildarg | city | Ireland | 52.62 | -8.18 | 1000 | 1561 | |
| Foildarrig | city | Ireland | 52.21 | -8.01 | 830 | 948 | |
| Foilduff | city | Ireland | 52.72 | -8.23 | 1000 | 748 | |
| Foilhaman | city | Ireland | 52.71 | -8.10 | 997 | 822 | |
| Foilmarnett | city | Ireland | 52.59 | -7.52 | 830 | 1586 | |
| Foilmore Bridge | city | Kerry | Ireland | 51.98 | -10.15 | 246 | 844 |
| Foilnamack | city | Cork | Ireland | 51.54 | -9.46 | 3 | 1023 |
| Foilnamuck | city | Ireland | 52.77 | -8.16 | 1095 | 999 | |
| Foilycleara | city | Ireland | 52.64 | -8.21 | 1007 | 1187 | |
| Foirnís | city | Galway | Ireland | 53.38 | -9.54 | 213 | 513 |
| Foirtil | city | Offaly | Ireland | 53.08 | -7.83 | 324 | 1406 |
| Foley's Cross Roads | city | Ireland | 52.40 | -8.53 | 324 | 3185 | |
| Foley’s Cross Roads | city | Ireland | 52.40 | -8.53 | 324 | 3185 | |
| Folkstown Great | city | Fingal | Ireland | 53.61 | -6.23 | 98 | 11092 |
| Follistown | city | Meath | Ireland | 53.64 | -6.61 | 259 | 8453 |
| Fontstown | city | Kildare | Ireland | 53.05 | -6.89 | 331 | 1809 |
| Ford | city | Wexford | Ireland | 52.51 | -6.28 | 29 | 1540 |
| Ford Bridge | city | Kildare | Ireland | 53.28 | -6.86 | 291 | 3933 |
| Fordrath | city | Meath | Ireland | 53.62 | -6.90 | 259 | 3474 |
| Fordstown | city | Meath | Ireland | 53.67 | -6.90 | 259 | 4310 |
| Fordstown | city | Meath | Ireland | 53.69 | -6.90 | 255 | 7826 |
| Fore | city | An Iarmhi | Ireland | 53.68 | -7.22 | 830 | 1552 |
| Forehill | city | Kilkenny | Ireland | 52.70 | -7.53 | 830 | 1836 |
| Forelacka | city | Offaly | Ireland | 53.08 | -7.68 | 1115 | 751 |
| Forenaghts | city | Kildare | Ireland | 53.22 | -6.61 | 830 | 14330 |
| Forest Bridge | city | Laois | Ireland | 52.97 | -7.47 | 337 | 2801 |
| Forest Farm | city | Kildare | Ireland | 53.01 | -6.93 | 249 | 4371 |
| Forest Upper | city | Laois | Ireland | 53.15 | -7.36 | 347 | 4343 |
| Forest-wood | city | Wexford | Ireland | 52.44 | -6.79 | 830 | 1994 |
| Forestalstown | city | Kilkenny | Ireland | 52.36 | -7.02 | 111 | 1705 |
| Forestwood | city | Wexford | Ireland | 52.44 | -6.79 | 830 | 1994 |
| Forkfield | city | Mayo | Ireland | 53.78 | -9.40 | 830 | 1441 |
| Forkill | city | Meath | Ireland | 53.75 | -7.15 | 830 | 2298 |
| Formaoil | city | Sligo | Ireland | 54.29 | -8.37 | 830 | 1547 |
| Formoyle | city | Longford | Ireland | 53.62 | -7.83 | 246 | 1300 |
| Formoyle | city | Sligo | Ireland | 54.29 | -8.37 | 830 | 1547 |
| Formoyle | city | Clare | Ireland | 53.11 | -9.25 | 830 | 349 |
| Formoyle | city | Mayo | Ireland | 54.14 | -9.46 | 272 | 513 |
| Fornaght | city | Cork | Ireland | 51.98 | -8.69 | 830 | 2287 |
| Forrest Great | city | Fingal | Ireland | 53.44 | -6.26 | 98 | 53724 |
| Fort Arthur | city | Cork | Ireland | 51.67 | -8.58 | 262 | 2715 |
| Fort Bridge | city | South Dublin | Ireland | 53.26 | -6.37 | 830 | 84178 |
| Fort Cross Roads | city | Cork | Ireland | 51.84 | -8.49 | 219 | 50680 |
| Fort East | city | Ireland | 52.40 | -8.72 | 226 | 3020 | |
| Fort Elizabeth | city | Ireland | 52.53 | -8.68 | 206 | 2454 | |
| Fort Middle | city | Ireland | 52.39 | -8.76 | 249 | 2400 | |
| Fort Prospect | city | Cork | Ireland | 51.64 | -8.84 | 249 | 3858 |
| Fort Stewart | city | Donegal | Ireland | 55.02 | -7.59 | 0 | 1843 |
| Fort Stewart House | city | Donegal | Ireland | 55.02 | -7.59 | 0 | 1843 |
| Fort View | city | Cork | Ireland | 51.59 | -9.45 | 347 | 903 |
| Fort William | city | Cork | Ireland | 52.20 | -8.61 | 295 | 2811 |
| Fort William | city | Cork | Ireland | 51.82 | -8.66 | 331 | 4457 |
| Fortel | city | Offaly | Ireland | 53.08 | -7.83 | 324 | 1406 |
| Fortfaulkner | city | Wicklow | Ireland | 52.86 | -6.28 | 324 | 2096 |
| Forth Commons | city | Wexford | Ireland | 52.30 | -6.55 | 334 | 6206 |
| Fossy | city | Laois | Ireland | 52.95 | -7.19 | 830 | 1058 |
| Fostersfield | city | Meath | Ireland | 53.63 | -6.91 | 265 | 3357 |
| Fosterstown | city | Meath | Ireland | 53.54 | -6.79 | 200 | 7630 |
| Foulkesmill | city | Wexford | Ireland | 52.31 | -6.75 | 85 | 2146 |
| Foulkesmills | city | Wexford | Ireland | 52.31 | -6.75 | 85 | 2146 |
| Foulkstown | city | Kilkenny | Ireland | 52.62 | -7.26 | 249 | 19316 |
| Foulkstown | city | Ireland | 52.53 | -7.76 | 830 | 1149 | |
| Fountain Cross | city | Clare | Ireland | 52.87 | -9.03 | 170 | 16005 |
| Four Cross Roads | city | Ireland | 52.59 | -7.67 | 830 | 2327 | |
| Four Mile House | city | Roscommon | Ireland | 53.70 | -8.22 | 249 | 1482 |
| Four Mile Water Bridge | city | Ireland | 52.27 | -7.76 | 275 | 1292 | |
| Fourcuil | city | Cork | Ireland | 51.65 | -8.90 | 229 | 5613 |
| Fourknocks | city | Meath | Ireland | 53.60 | -6.33 | 830 | 3256 |
| Fownlough | city | Ireland | 52.84 | -8.21 | 249 | 8341 | |
| Fox and Geese | city | South Dublin | Ireland | 53.32 | -6.36 | 203 | 208792 |
| Fox's Castle Bridge | city | Ireland | 52.16 | -7.50 | 249 | 1603 | |
| Foxfield | city | Leitrim | Ireland | 54.02 | -7.86 | 223 | 1635 |
| Foxford | city | Mayo | Ireland | 53.98 | -9.12 | 157 | 2090 |
| Foxhall | city | Galway | Ireland | 53.59 | -9.00 | 393 | 1354 |
| Foxhill | city | Kildare | Ireland | 52.99 | -6.94 | 242 | 7346 |
| Foxrock | city | Dun Laoghaire-Rathdown | Ireland | 53.27 | -6.17 | 177 | 120358 |
| Foxtown | city | Meath | Ireland | 53.52 | -6.71 | 249 | 3055 |
| Fox’s Castle Bridge | city | Ireland | 52.16 | -7.50 | 249 | 1603 | |
| Foygh | city | Longford | Ireland | 53.60 | -7.83 | 236 | 1424 |
| Foyle Bridge | city | Kilkenny | Ireland | 52.76 | -7.45 | 830 | 1336 |
| Foynes | city | Ireland | 52.61 | -9.11 | 196 | 1972 |