| Name | Meaning | Gender | Origin |
|---|
| Mario | From the god Mars | Male | Latin |
| Mark | From the god Mars | Male | Latin |
| Markus | From the god Mars | Male | Latin |
| Marlon | Little Falcon | Male | English |
| Martin | From the god Mars | Male | Latin |
| Martina | From the god Mars | Female | Latin |
| Marty | From the god Mars | Male | Latin |
| Mary | Bitter | Female | Hebrew |
| Mathew | Gift of God | Male | Hebrew |
| Matt | Gift of God | Male | Hebrew |
| Maurizio | Moor | Male | Latin |
| Max | Little Maximus | Male | Latin |
| Maxim | The greatest | Male | Latin |
| Maya | Uncertain, perhaps mother or great one | Female | Greek |
| Mckenzie | Son of Coinneach | Female | Gaelic |
| Megan | Pearl | Female | Greek |
| Mel | Uncertain, possibly bad town | Unisex | English |
| Melissa | Honey-bee | Female | Greek |
| Michel | Who is like God? | Male | Hebrew |
| Mickey | Who is like God? | Unisex | Hebrew |
| Mikhail | Who resembles God? | Male | Hebrew |
| Milton | Settlement by the mill | Male | English |
| Mina | Will, desire + helmet, protection | Female | Germanic |
| Mindy | Pet form of Melinda | Female | English |
| Minnie | Will, desire + helmet, protection | Female | Germanic |
| Mo | Moor | Unisex | Latin |
| Moe | Moor | Male | Latin |
| Monique | Uncertain, perhaps counsellor | Female | Latin |
| Monty | Gomeric's hill | Male | French |
| Morey | Dark Skinned | Unisex | Latin |