| Lilou | Woman | French Names |
| Lionel | Man | French Names |
| Lisette | Woman | French Names |
| Lisle | Unisex | French Names |
| Lizette | Woman | French Names |
| Loan | Man | French Names |
| Loie | Woman | French Names |
| Lorraine | Woman | French Names |
| Louane | Woman | French Names |
| Loup | Man | French Names |
| Lourdes | Woman | French Names |
| Lucie | Woman | French Names |
| Lucien | Man | French Names |
| Lucienne | Woman | French Names |
| Lucille | Woman | French Names |
| Lucrece | Woman | French Names |
| Ludovic | Man | French Names |
| Lunete | Woman | French Names |
| Lunette | Woman | French Names |
| Lyam | Man | French Names |