| Luitgard | | - | German, Ancient Germanic | |
| Lutgardis | | - | Ancient Germanic (Latinized) | |
| Lycurgus | | - | Greek Mythology (Latinized), Ancient Greek (Latinized) | |
| Lycus | | - | Greek Mythology (Latinized), Ancient Greek (Latinized) | |
| Lykos | | - | Greek Mythology, Ancient Greek | |
| Lykourgos | | - | Greek Mythology, Ancient Greek | |
| Lysander | | - | Ancient Greek (Latinized) | |
| Lysandra | | - | Ancient Greek | |
| Lysandros | | - | Ancient Greek | |
| Lysimachos | | - | Ancient Greek | |
| Lysimachus | | - | Ancient Greek (Latinized) | |
| Lysistrata | | - | Ancient Greek (Latinized) | |
| Lysistrate | | - | Ancient Greek | |
| MÁEdÓC | | - | Ancient Irish | |
| MÁEl MÁEdÓC | | - | Ancient Irish | |