| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 1281 | Kyrell | Irish | A place-name referring to the narrows; a wood or a church. | M | |
| 1282 | Labhaoise | Irish | Warrior maiden. | F | |
| 1283 | Lacey | Irish | Surname. | M | |
| 1284 | Laetitia | Irish | Irish form of Letitia: happy. | F | |
| 1285 | Lakeland | Irish | Home of the Norse. | M | |
| 1286 | Lalor | Irish | Leper. | M | |
| 1287 | Lana | Irish | A diminutive of Alana: Child. Famous Bearer: American actress Lana Turner. | F | |
| 1288 | Lany | Irish | Servant. | M | |
| 1289 | Laoghaire | Irish | Shepherd. | M | |
| 1290 | Laoidhigh | Irish | Poetic. | M | |
| 1291 | Laughlin | Irish | Servant. | M | |
| 1292 | Leachlainn | Irish | Servant. | M | |
| 1293 | Leary | Irish | Cattle keeper. | M | |
| 1294 | Leathlobhair | Irish | Leper. | M | |
| 1295 | Lee | Irish | Poetic. | M | |
| 1296 | Leena | Irish | Wet meadow. | F | |
| 1297 | Leila | Irish | Name of a saint. | F | |
| 1298 | Lennon | Irish | Surname. | M | |
| 1299 | Levane | Irish | The elm tree. | F | |
| 1300 | Liam | Irish | The Irish diminutive of the name William. | M | |