| Name | Meaning | Gender | Origin |
|---|
| Marita | Bitter | Unisex | Dutch |
| Mark | From the god Mars | Male | Latin |
| Marmaduke | Devotee of Maedoc | Male | Gaelic |
| Marshall | Horse servant | Male | Germanic |
| Martin | From the god Mars | Male | Latin |
| Martina | From the god Mars | Female | Latin |
| Mary | Bitter | Female | Hebrew |
| Matilda | Powerful battler | Female | Germanic |
| Maude | Powerful battler | Female | German |
| Maura | Moor | Female | Latin |
| Maurice | Moor | Male | Latin |
| Maxima | The greatest | Female | Latin |
| Maximilian | Little Maximus | Male | Latin |
| Maximus | The greatest | Male | Latin |
| Maxine | Little Maximus | Female | Latin |
| Maynard | Mighty and brave | Male | Germanic |
| Mayra | Uncertain, perhaps myrrh, onguent | Female | Latin |
| Mel | Uncertain, possibly bad town | Unisex | English |
| Melania | Black | Female | Greek |
| Melchior | King city | Male | Persian |
| Melinda | Blending of 'mel' and 'inda' | Female | English |
| Melvin | Uncertain, possibly bad town | Male | English |
| Mercedes | Mercies | Female | Spanish |
| Meredith | Great lord | Female | Welsh |
| Messina | Middle Child | Female | Latin |
| Michele | Who is like God? | Female | Hebrew |
| Mildred | Gentle strength | Female | English |
| Miles | Uncertain, perhaps peaceful | Male | Germanic |
| Milo | Uncertain, perhaps peaceful | Male | Germanic |
| Mimi | Uncertain, maybe bitter | Female | Hebrew |