| Lot (2) | | - | Arthurian Romance | |
| Lothaire | | - | French | |
| Lothar | | LO-tahr (German) | German, Ancient Germanic | |
| Lotte | | LAW-tə (German) | Danish, Swedish, Norwegian, Dutch, German | |
| Lou | | LOO (English) | English, French | |
| Louane | | - | French | |
| Louis | | loo-EE (French), LOO-is (English) | French, English, Dutch | |
| Louisa | | loo-EEZ-ə (English), loo-EES-ə (English) | English, German, Dutch | |
| Louise | | loo-EEZ (French, English), loo-EE-se (Danish) | French, English, Danish, Swedish, Dutch | |
| Louisette | | - | French | |
| Loukas | | - | Biblical Greek | |
| Loukianos | | - | Ancient Greek | |
| Loukios | | - | Ancient Roman (Hellenized), Biblical Greek | |
| Louna | | - | French (Modern) | |
| Loup | | - | French | |