| Name | Meaning | Gender | Origin |
|---|
| Lucifer | light-bearer | Male | Latin |
| Lucky | Having good luck. | Male | Word |
| Lucy | light: illumination.
| Female | English |
| Ludwig | Famous fighter
| Male | |
| Lugh | Luminescent | Unisex | Irish |
| Luke | Light | Male | Greek |
| Lulu | Pet form of the names Louise or Louella.
| Female | English |
| Lumpy | | Unisex | Hebrew |
| Luna | moon | Female | Latin |
| Lyle | island | Male | Scottish |
| Macha | Irish Goddess | Female | Irish |
| Maggie | Abbreviation of Margaret. A pearl.
| Female | English |
| Maia | nurse, mother, goddess of spring; great | Female | Greek |
| Mali | sweet | Female | Thai |
| Mandela | | Male | Hebrew |
| Mango | after the character in Saturday Night Live | Unisex | |
| Manny | God Is With Us | Male | English |
| Mao | Egyptian for Cat | Male | |
| Maple | Deciduous tree known for it's autumn colour. | Female | Tree |
| Marcus | warlike | Male | Latin |
| Margarita | Cocktail made with tequila and lemon or lime juice. | Female | Spanish |
| Marge | Pearl | Unisex | English |
| Marie | Bitter
| Female | |
| Marmaduke | leader of the seas | Male | Irish |
| Marmelade | | Unisex | Hebrew |