| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Lional | city | Eilean Siar | United Kingdom | 58.47 | -6.25 | 249 | 459 |
| Lionel | city | Eilean Siar | United Kingdom | 58.47 | -6.25 | 249 | 459 |
| Lios Béal Átha | city | Fermanagh and Omagh | United Kingdom | 54.32 | -7.53 | 252 | 2384 |
| Lios Bó Finne | city | Armagh, Banbridge and Craigavon | United Kingdom | 54.42 | -6.70 | 209 | 4930 |
| Lios Leathan | city | Causeway Coast and Glens | United Kingdom | 55.00 | -6.88 | 285 | 5186 |
| Lios Maoláin | city | Newry, Mourne and Down | United Kingdom | 54.30 | -5.60 | 75 | 5621 |
| Lios Tulaigh Uí Chorráin | city | Lisburn and Castlereagh | United Kingdom | 54.43 | -6.13 | 830 | 19058 |
| Lios an tSúdaire | city | Newry, Mourne and Down | United Kingdom | 54.40 | -5.82 | 131 | 7828 |
| Lios na Crí | city | Newry, Mourne and Down | United Kingdom | 54.07 | -6.08 | 32 | 4923 |
| Lios na Scéithe | city | Fermanagh and Omagh | United Kingdom | 54.25 | -7.45 | 354 | 2384 |
| Lios na gCearrbhach | city | Lisburn and Castlereagh | United Kingdom | 54.51 | -6.04 | 164 | 24622 |