| Name | Meaning | Gender | Origin |
|---|
| Lennox | amid the lems, from the field of elm trees | Male | Scottish |
| Leo | Lion.
| Male | Latin |
| Linus | flaxen-haired | Male | Greek |
| Lionel | Cousin of Lancelot
| Male | Latin |
| London | fierce ruler of the world | Female | English |
| Mabel | my fair maid; lovely | Female | English |
| Mae | bitter | Female | English |
| Magnolia | Flower
| Female | Latin |
| Magnus | One who is great.
| Male | Latin |
| Maia | nurse, mother, goddess of spring; great | Female | Greek |
| Maisie | child of light | Female | Scottish |
| Marshall | Man who looks after a nobleman's estate, keeper of the horses; steward | Male | |
| Mary | bitter | Female | Hebrew |
| Maxwell | Capable
| Male | Scottish |
| Maya | Abbreviation of Amalia: variant of Maia.
| Female | Hebrew |
| Mehitabel | Delighted | Female | Hebrew |
| Mercy | compassion, pity | Female | English |
| Meredith | great ruler | Female | Welsh |
| Michelangelo | Italian, angel, messenger | Male | Combination |
| Miller | one who mills. Brand of American beer | Male | English |
| Monroe | mouth of the Roe River; wheelwright | Female | Scottish |
| Monroe | mouth of the Roe River; wheelwright | Female | Scottish |
| Morgan | circle; sea | Female | Welsh |
| Moses | saved; child; taken from water | Male | Egyptian |
| Moya | Great | Unisex | Spanish |