| Name | Meaning | Gender | Origin |
|---|
| Marcus | warlike | Male | Latin |
| Marian | Form of Mary | Male | |
| Mario | bitter, king-ruler | Male | Italian |
| Marion | bitter | Male | |
| Mark | warlike | Male | Latin |
| Marlon | little hawk | Male | English |
| Marshall | Man who looks after a nobleman's estate, keeper of the horses; steward | Male | |
| Martin | Warlike person. | Male | Latin |
| Marvin | beautiful sea; good friend | Male | Welsh |
| Matt | Gift Of God | Male | English |
| Matthew | Gift of the Lord | Male | Hebrew |
| Maverick | One that dissents from the group. | Male | American |
| Max | Large spring | Male | English |
| Max | Large spring | Male | English |
| Maxime | The greatest.
| Male | |
| Maximilian | greatest | Male | Latin |
| Maximus | greatest | Male | Latin |
| Maxwell | Capable
| Male | Scottish |
| McKenzie | Handsome, Fiery | Unisex | English |
| Mel | Scottish, settlement on infertile land | Male | English |
| Melvin | Chief
| Male | English |
| Mercury | Trade God | Male | Latin |
| Merlin | Character on Chocolate Frog card.
| Male | Welsh |
| Mervyn | Famous Friend | Male | English |
| Meyer | a farmer | Male | Hebrew |