| Leonaida | Descended from a brave lioness. |
| Leoncita | A small and spirited lioness. |
| Leonello | A young and courageous lion. |
| Leonilda | A brave and bold lioness warrior. |
| Lert | A name meaning alert and watchful. |
| Leymah | One who brings peace and harmony. |
| Liara | A delicate and graceful blossom. |
| Licorice | Derived from the sweet root plant. |
| Lido | A name meaning a sandy beach shore. |
| Lilou | A lovely lily flower of the field. |
| Linux | A name meaning free and open source. |
| Liorah | A name meaning my light is shining. |
| Lip | A name meaning edge or a boundary. |
| Livani | A name meaning life or living. |
| Living | Existing and being alive today. |
| Lobelia | Named after a botanical flower. |
| Logic | Reasoning based on valid facts. |
| Lokiya | Derived from the world or earth. |
| Lollys | Sweet treats or candy delights. |
| Lomba | A name meaning forest or woods. |
| Lombok | Named after a spicy chili pepper. |
| Lonavala | A place of caves and mountains. |
| Loo | A common term for a restroom area. |
| Loras | Derived from the laurel tree. |
| Louve | French word meaning shewolf. |
| Lovlina | A name meaning beautiful one. |
| Lowena | A Cornish name meaning joy. |
| Lubos | Slavic name meaning beloved. |
| Lucern | Derived from a bright lamp. |
| Lucin | A name meaning light bringer. |
| Lufit | A name meaning little light. |
| Lullaby | A soothing song for sleep. |
| Luminara | A name meaning bright light. |
| Lunaria | Derived from the moon flower. |
| Lund | A small grove of forest trees. |
| Lupine | Resembling a wild wolf spirit. |
| Lute | A classic stringed instrument. |
| Lutza | A name meaning light or grace. |
| Luwin | A friend of the bright light. |
| Lyrette | A small and melodic harp song. |