| Marsha | Woman | American Names |
| Marv | Man | American Names |
| Marvene | Woman | American Names |
| Maryinane | Woman | American Names |
| Maryjane | Woman | American Names |
| Maryland | Unisex | American Names |
| Marylou | Woman | American Names |
| Maryse | Woman | American Names |
| Massalona | Woman | American Names |
| Matrim | Man | American Names |
| Matteus | Man | American Names |
| Maurissa | Woman | American Names |
| Mauve | Woman | American Names |
| Maven | Woman | American Names |
| Maverick | Unisex | American Names |
| Maxandria | Woman | American Names |
| Maxie | Woman | American Names |
| Maxon | Man | American Names |
| Mayla | Woman | American Names |
| Mayliesha | Woman | American Names |