| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Laban | city | Gaillimh | Ireland | 53.1391667 | -8.8061111 | 91 | 2885 |
| Laghtgannon | city | Gaillimh | Ireland | 53.4041667 | -9.2711111 | 127 | 2345 |
| Laghtgeorge | city | Gaillimh | Ireland | 53.355 | -8.9272222 | 55 | 2871 |
| Laghtyslaughnessy | city | Gaillimh | Ireland | 53.0441667 | -8.8522222 | 134 | 2861 |
| Laragh Beg | city | Gaillimh | Ireland | 53.3763889 | -8.7625 | 259 | 2870 |
| Laragh More | city | Gaillimh | Ireland | 53.3858333 | -8.7963889 | 216 | 2870 |
| Lator's Cross Roads | city | Gaillimh | Ireland | 53.1336111 | -8.4622222 | 232 | 2885 |
| Latorʼs Cross Roads | city | Gaillimh | Ireland | 53.1336111 | -8.4622222 | 232 | 2885 |
| Laughil | city | Gaillimh | Ireland | 53.3063889 | -9.2127778 | 249 | 2874 |
| Laurencetown | city | Gaillimh | Ireland | 53.2302778 | -8.18 | 249 | 2863 |
| Leagaun | city | Gaillimh | Ireland | 53.5252778 | -10.1247222 | 0 | 1521 |
| Leagaun | city | Gaillimh | Ireland | 53.3536111 | -9.1586111 | 59 | 2137 |
| Lecarrow | city | Gaillimh | Ireland | 53.2133333 | -8.4936111 | 249 | 2881 |
| Leitir Fraic | city | Gaillimh | Ireland | 53.55 | -9.95 | 269 | 2292 |
| Leitir Meallain | city | Gaillimh | Ireland | 53.245 | -9.7386111 | 3 | 416 |
| Leitir Mealláin | city | Gaillimh | Ireland | 53.245 | -9.7386111 | 3 | 416 |
| Leitrim | city | Gaillimh | Ireland | 53.1572222 | -8.4541667 | 236 | 2885 |
| Letter More | city | Gaillimh | Ireland | 53.5788889 | -10.0158333 | 0 | 1945 |
| Letterfrack | city | Gaillimh | Ireland | 53.55 | -9.95 | 269 | 2292 |
| Lettermore | city | Gaillimh | Ireland | 53.3838889 | -9.5005556 | 318 | 2746 |
| Lettermullan | city | Gaillimh | Ireland | 53.245 | -9.7386111 | 3 | 416 |
| Liscananaun | city | Gaillimh | Ireland | 53.3680556 | -8.9605556 | 49 | 2870 |
| Liscune | city | Gaillimh | Ireland | 53.3633333 | -8.4458333 | 249 | 2871 |
| Lisduff | city | Gaillimh | Ireland | 53.3022222 | -8.6172222 | 219 | 2874 |
| Lisheenaclara | city | Gaillimh | Ireland | 53.1430556 | -8.5427778 | 495 | 2885 |
| Lisheenaguile | city | Gaillimh | Ireland | 53.2188889 | -8.2791667 | 272 | 2881 |
| Lisheenanoran | city | Gaillimh | Ireland | 53.3733333 | -9.0527778 | 45 | 1773 |
| Lisheenavalla | city | Gaillimh | Ireland | 53.3302778 | -8.8852778 | 72 | 2843 |
| Lismanny Bridge | city | Gaillimh | Ireland | 53.2761111 | -8.165 | 216 | 2542 |
| Lisnascreena | city | Gaillimh | Ireland | 53.4016667 | -8.3513889 | 229 | 2870 |
| Lissagurraun | city | Gaillimh | Ireland | 53.2955556 | -9.1591667 | 249 | 2490 |
| Lissaniska | city | Gaillimh | Ireland | 53.4022222 | -8.7455556 | 370 | 2870 |
| Lissaniska | city | Gaillimh | Ireland | 53.1727778 | -8.2613889 | 334 | 2884 |
| Lough | city | Gaillimh | Ireland | 53.375 | -9.5375 | 213 | 2731 |
| Lough Nafurnace | city | Gaillimh | Ireland | 53.375 | -9.5375 | 213 | 2731 |
| Loughaclerybeg | city | Gaillimh | Ireland | 53.3483333 | -8.4661111 | 249 | 2871 |
| Loughamore | city | Gaillimh | Ireland | 53.3319444 | -9.7583333 | 374 | 1512 |
| Loughaunbeg | city | Gaillimh | Ireland | 53.2405556 | -9.3952778 | 3 | 1217 |
| Loughcurra | city | Gaillimh | Ireland | 53.1305556 | -8.9052778 | 72 | 2721 |
| Loughrea | city | Gaillimh | Ireland | 53.1969444 | -8.5669444 | 344 | 2884 |
| Lumnagh | city | Gaillimh | Ireland | 53.4175 | -9.0544444 | 68 | 2441 |
| Lurgan | city | Gaillimh | Ireland | 53.2016667 | -8.355 | 252 | 2884 |
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