| Leontios | | - | Ancient Greek | |
| Leontius | | - | Ancient Greek (Latinized) | |
| Leto | | - | Greek Mythology | |
| Leui | | - | Biblical Greek | |
| 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 | |
| Lois (1) | | LO-is (English) | English, Biblical, Biblical Latin, Biblical Greek | |
| Louiza | | - | Greek | |
| Loukas | | - | Biblical Greek | |
| Loukianos | | - | Ancient Greek | |
| Loukios | | - | Ancient Roman (Hellenized), Biblical Greek | |
| Lycurgus | | - | Greek Mythology (Latinized), Ancient Greek (Latinized) | |
| Lycus | | - | Greek Mythology (Latinized), Ancient Greek (Latinized) | |
| Lydia | | LID-ee-ə (English), LUY-dee-ah (German, Finnish) | English, German, Finnish, Biblical, Old Church Slavic, Biblical Latin, Biblical Greek | |