| Lachesis | | - | Greek Mythology | |
| Laios | | - | Greek Mythology | |
| Laius | | - | Greek Mythology (Latinized) | |
| Lamia (2) | | - | Greek Mythology | |
| Larisa | | lah-REE-sah (Russian) | Russian, Ukrainian, Romanian, Latvian, Greek Mythology | |
| Larissa | | lə-RIS-ə (English) | English, Portuguese (Brazilian), Greek Mythology (Latinized) | |
| Leander | | lee-AN-dər (English) | Greek Mythology (Latinized) | |
| Leandros | | - | Greek Mythology | |
| Leda | | LEE-də (English), LAY-də (English) | Greek Mythology | |
| Leto | | - | Greek Mythology | |
| Ligeia | | - | Greek Mythology, Ancient Greek | |
| Linos | | - | Greek Mythology, Ancient Greek | |
| Linus | | LIE-nəs (English), LEE-nuws (German, Swedish) | Greek Mythology (Latinized), Ancient Greek (Latinized), German, Swedish, Norwegian, Danish | |
| Lycurgus | | - | Greek Mythology (Latinized), Ancient Greek (Latinized) | |
| Lycus | | - | Greek Mythology (Latinized), Ancient Greek (Latinized) | |