| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Labasheeda | city | An Clar | Ireland | 52.6233333 | -9.2469444 | 0 | 3925 |
| Labbasheeda | city | An Clar | Ireland | 52.6233333 | -9.2469444 | 0 | 3925 |
| Lahinch | city | An Clar | Ireland | 52.9366667 | -9.3452778 | 180 | 2113 |
| Lannaght | city | An Clar | Ireland | 53.0130556 | -8.7163889 | 249 | 2725 |
| Latoon Bridge | city | An Clar | Ireland | 52.795 | -8.9216667 | 13 | 2511 |
| Lavally | city | An Clar | Ireland | 52.7316667 | -9.0769444 | 108 | 2517 |
| Leaba Shioda | city | An Clar | Ireland | 52.6233333 | -9.2469444 | 0 | 3925 |
| Leaba Shíoda | city | An Clar | Ireland | 52.6233333 | -9.2469444 | 0 | 3925 |
| Leana | city | An Clar | Ireland | 52.9888889 | -9.0822222 | 259 | 2500 |
| Lecarrow | city | An Clar | Ireland | 52.9208333 | -8.6244444 | 236 | 2503 |
| Lehinch | city | An Clar | Ireland | 52.9366667 | -9.3452778 | 180 | 2113 |
| Lios Ceannuir | city | An Clar | Ireland | 52.9416667 | -9.3858333 | 0 | 1577 |
| Lios Ceannúir | city | An Clar | Ireland | 52.9416667 | -9.3858333 | 0 | 1577 |
| Lios Duin Bhearna | city | An Clar | Ireland | 53.0327778 | -9.2883333 | 252 | 2497 |
| Lios Dúin Bhearna | city | An Clar | Ireland | 53.0327778 | -9.2883333 | 252 | 2497 |
| Liscannor | city | An Clar | Ireland | 52.9416667 | -9.3858333 | 0 | 1577 |
| Liscanor | city | An Clar | Ireland | 52.9416667 | -9.3858333 | 0 | 1577 |
| Liscasey | city | An Clar | Ireland | 52.7511111 | -9.1930556 | 383 | 2514 |
| Liscullaun | city | An Clar | Ireland | 52.8511111 | -8.7272222 | 423 | 2510 |
| Lisdeen | city | An Clar | Ireland | 52.675 | -9.6086111 | 9 | 2172 |
| Lisdoonvarna | city | An Clar | Ireland | 53.0327778 | -9.2883333 | 252 | 2497 |
| Lismorahaun | city | An Clar | Ireland | 53.0747222 | -9.2488889 | 685 | 2493 |
| Lisroe | city | An Clar | Ireland | 52.7958333 | -9.1886111 | 498 | 2511 |
| Lower Ballycotteen | city | An Clar | Ireland | 52.9683333 | -9.4072222 | 265 | 1574 |
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