| Name | Meaning | Gender | Origin |
|---|
| Lucia | Light | Female | Latin |
| Lucille | Light | Female | Latin |
| Lucy | Light | Female | Latin |
| Luisa | Fame and war | Female | Germanic |
| Mabel | Lovable | Female | French |
| Mae | The fifth month of the year | Female | English |
| Magic | Possessing qualities that produce baffling effects | Unisex | English |
| Magnum | A large type of wine bottle. | Unisex | English |
| Majestic | | Unisex | Hebrew |
| Marble | | Unisex | Hebrew |
| Marcia | From the god Mars | Female | Latin |
| Maria | Bitter | Female | Hebrew |
| Mariana | Latinate form of Marian | Female | Latin |
| Marta | Lady | Female | Aramaic |
| Matilde | Powerful battler | Female | German |
| Maxi | Pet form of names starting with Max | Unisex | English |
| Maxine | Little Maximus | Female | Latin |
| Mel | Uncertain, possibly bad town | Unisex | English |
| Mercedes | Mercies | Female | Spanish |
| Mercy | Compassion | Female | English |
| Micaela | Who is like God? | Female | Hebrew |
| Misty | Misty | Female | English |
| Monica | Uncertain, perhaps counsellor | Female | Latin |
| Monster | A creature of frightening appearance | Unisex | English |
| Natalia | Christ's birthday | Female | Italian |
| Nathalia | (Christ's) birthday | Female | Latin |
| Nevada | Snow-covered | Female | Spanish |
| Olga | Holy | Female | German |
| Olivia | Elf army | Female | English |
| Onyx | A gemstone with bands of different colours. | Unisex | English |