| Name | Meaning | Gender | Origin |
|---|
| Maine | Mainland | Female | French |
| Maisie | child of light | Female | Scottish |
| Manhasset | after a music stand company | Unisex | |
| Manhattan | Whiskey | Unisex | |
| Mansfield | From The Field By The Small River | Unisex | English |
| Marcy | From Marcella - Belonging to Mars. | Female | English |
| Marilla | Flower | Female | English |
| Marlboro | | Unisex | Hebrew |
| Martha | a lady | Female | Aramaic |
| Matilda | battle-mighty | Female | |
| Meredith | great ruler | Female | Welsh |
| Milan | Union, Combine, Joining
| Female | Place-name |
| Mina | Precious Stone | Female | Hindi |
| Minerva | after the Roman goddess of the hunt | Female | Latin |
| Mohawk | Native American Tribe Name | Unisex | Native American |
| Moira | bitter; great | Female | Irish |
| Monroe | mouth of the Roe River; wheelwright | Female | Scottish |
| Monroe | mouth of the Roe River; wheelwright | Female | Scottish |
| Montezuma | after the Aztec god-king | Unisex | |
| Moriah | the Lord is my teacher | Female | Biblical |
| Napoli | | Unisex | Hebrew |
| New York | | Unisex | Hebrew |
| Newark | | Unisex | Hebrew |
| Norway | | Unisex | |
| Odessa | odyssey, journey, voyage | Female | Russian |