| Name | Meaning | Gender | Origin |
|---|
| Logan | little hollow | Male | Scottish |
| Lollipop | | Unisex | |
| Lorenzo | Form of Lawrence. Lorenzo de' Medici was a patron of Michaelangelo and Da Vinci.
| Male | Italian |
| Love | loved one | Female | Word |
| Lovely | | Unisex | Hebrew |
| Lover | | Unisex | |
| Lovey Dovey | | Unisex | Hebrew |
| Ma | | Unisex | Hebrew |
| Mama | Informal for mother. | Unisex | |
| Mandy | Harmony | Female | English |
| Maria | bitter | Female | Latin |
| Marian | Form of Mary | Male | |
| Mercedes | Compassionate, merciful. | Female | Spanish |
| Merlin | Character on Chocolate Frog card.
| Male | Welsh |
| Mila | Dear One | Female | Russian |
| Mina | Precious Stone | Female | Hindi |
| Mindy | From Minta - Remembered with love | Female | English |
| Mistress | | Unisex | Hebrew |
| Monkey | | Unisex | |
| Muffin | A small cup shaped cake | Unisex | |
| Munchkin | A very small elflike person. | Unisex | |
| Muppet | | Unisex | Hebrew |
| Myra | sweet-smelling oil | Female | Greek |
| Myrtle | a flower, symbol of victory | Female | Greek |
| Nicolette | people of victory | Female | |