| Name | Meaning | Gender | Origin |
|---|
| Lemon | Beloved man | Unisex | English |
| Lena | The bright one | Female | Greek |
| Lennon | Descendant of Leannán or Lonán | Male | Gaelic |
| Lightening | | Unisex | Hebrew |
| Lil | Lily | Unisex | English |
| Lily | Lily | Female | English |
| Lincoln | Lake settlement, lake colony | Male | English |
| Lindley | Flax wood/clearing, lime tree wood | Unisex | English |
| Linus | Flaxen-Haired | Male | Greek |
| Liona | Lioness | Female | Italian |
| Little | | Unisex | Hebrew |
| Logan | Hollow | Unisex | Gaelic |
| Lola | Sorrows | Female | Spanish |
| Lorelei | Murmuring rock | Female | German |
| Lourdes | Craggy slope | Female | Basque |
| Lumina | Luminous | Female | Latin |
| Luna | Moon | Female | Latin |
| Mabel | Lovable | Female | French |
| Madalyn | From Magdala | Female | Hebrew |
| Maddie | Pet form of Mad- names | Unisex | English |
| Mae | The fifth month of the year | Female | English |
| Magda | Of Magdala | Female | Hebrew |
| Mannix | Little monk | Male | Gaelic |
| Marlena | Contraction of Maria Magdalene | Female | German |
| Marshmallow | A soft spongy sweet confectionery. Also a timid person. | Unisex | English |
| Matilda | Powerful battler | Female | Germanic |
| Melanie | Black | Female | Greek |
| Mercedes | Mercies | Female | Spanish |
| Mercy | Compassion | Female | English |
| Mickey | Who is like God? | Unisex | Hebrew |