| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| An Abhainn Bheag | city | Sligo | Ireland | 54.23 | -8.95 | 272 | 1335 |
| An Abhainn Dubh | city | Mayo | Ireland | 53.95 | -9.84 | 16 | 437 |
| An Abhainn Dubh | city | Wexford | Ireland | 52.45 | -6.35 | 137 | 1645 |
| An Abhainn Dubh | city | Mayo | Ireland | 54.03 | -9.68 | 370 | 146 |
| An Aill | city | Fingal | Ireland | 53.59 | -6.29 | 344 | 2986 |
| An Aill Rua Mhór | city | Clare | Ireland | 52.64 | -9.18 | 108 | 1157 |
| An Airdmhín | city | Donegal | Ireland | 54.98 | -8.26 | 830 | 1532 |
| An Ais | city | Wexford | Ireland | 52.32 | -6.87 | 203 | 1844 |
| An Ardaidh Bheag | city | Donegal | Ireland | 55.12 | -8.15 | 147 | 1354 |
| An Aírd Mhór | city | Mayo | Ireland | 54.20 | -10.01 | 0 | 908 |