| Name | Meaning | Gender | Origin |
|---|
| Marcus | From the god Mars | Male | Latin |
| Margaret | Pearl | Female | Greek |
| Marjorie | Pearl | Female | Greek |
| Mark | From the god Mars | Male | Latin |
| Marshall | Horse servant | Male | Germanic |
| Martin | From the god Mars | Male | Latin |
| Marvin | Uncertain, possibly eminent marrow | Male | Welsh |
| Mary | Bitter | Female | Hebrew |
| Maurice | Moor | Male | Latin |
| Max | Little Maximus | Male | Latin |
| Melvin | Uncertain, possibly bad town | Male | English |
| Mervyn | Uncertain, possibly eminent marrow | Male | Welsh |
| Michel | Who is like God? | Male | Hebrew |
| Mikhail | Who resembles God? | Male | Hebrew |
| Miles | Uncertain, perhaps peaceful | Male | Germanic |
| Millard | Guardian of the mill | Male | English |
| Mills | Mills | Unisex | English |
| Milton | Settlement by the mill | Male | English |
| Mohandas | Devoted to Krishna | Unisex | Sanskrit |
| Monroe | Mouth of the River Roe | Male | Gaelic |
| Morgan | Uncertain, perhaps bright sea | Female | Welsh |
| Morse | Dark-Skinned: A Moor. Form Of Maurice. | Male | English |
| Morton | Settlement by or on a moor | Male | English |
| Moses | Drawn out of the water | Male | Hebrew |
| Muriel | Bright as the sea | Female | Gaelic |
| Naomi | Beautiful, pleasant, delightful | Female | Hebrew |
| Neil | Champion | Male | Gaelic |
| Nelson | Son of Neal | Male | English |
| Nicholas | Victory of the people | Male | Greek |
| Norman | Thor mind, Thor courage | Male | Gaelic |