| Léonie | Woman | French Names |
| Léontine | Woman | French Names |
| Leverett | Man | French Names |
| Levron | Unisex | French Names |
| Lieux | Unisex | French Names |
| 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 |