| Lyylia | A name meaning lily or pure one. |
| Lyylikki | A Finnish name meaning song or melody. |
| Lyyly | A name meaning a soft, gentle breeze. |
| Lyyri | Derived from the musical lyre instrument. |
| Lyyska | A name meaning a thin, flat stone slab. |
| Lyytikka | A name meaning a small, musical sound. |
| Lyytikki | A name meaning a sweet, melodic song. |
| Lyz | Brightness, Ornament, Honourable |
| Lyzabeth | A short form of elizabeth |
| Ladakhi | A person from the Ladakh region. |
| Ladoo | A round Indian sweet treat. |
| Laena | A type of ancient Roman cloak. |
| Laurey | A variant of the laurel tree. |
| Layani | One who is flexible and graceful. |
| Leh | A high desert city in the Himalayas. |
| Leonaida | Descended from a brave lioness. |
| Leoncita | A small and spirited lioness. |
| Leonilda | A brave and bold lioness warrior. |
| Leymah | One who brings peace and harmony. |
| Liara | A delicate and graceful blossom. |
| Licorice | Derived from the sweet root plant. |
| Lilou | A lovely lily flower of the field. |
| Liorah | A name meaning my light is shining. |
| Lip | A name meaning edge or a boundary. |
| Livani | A name meaning life or living. |
| Lobelia | Named after a botanical flower. |
| Lollys | Sweet treats or candy delights. |
| Lomba | A name meaning forest or woods. |
| Loo | A common term for a restroom area. |
| Louve | French word meaning shewolf. |
| Lovlina | A name meaning beautiful one. |
| Lowena | A Cornish name meaning joy. |
| Lullaby | A soothing song for sleep. |
| Luminara | A name meaning bright light. |
| Lunaria | Derived from the moon flower. |
| Lute | A classic stringed instrument. |
| Lutza | A name meaning light or grace. |
| Lyrette | A small and melodic harp song. |