| Mariko | Woman | Japanese Names |
| Maro | Unisex | Japanese Names |
| Masaaki | Man | Japanese Names |
| Masafumi | Man | Japanese Names |
| Masahide | Man | Japanese Names |
| Masahiro | Man | Japanese Names |
| Masakatsu | Man | Japanese Names |
| Masakazu | Man | Japanese Names |
| Masaki | Man | Japanese Names |
| Masako | Woman | Japanese Names |
| Masami | Woman | Japanese Names |
| Masanobu | Man | Japanese Names |
| Masaru | Man | Japanese Names |
| Masashi | Man | Japanese Names |
| Masato | Man | Japanese Names |
| Masaye | Woman | Japanese Names |
| Masayo | Woman | Japanese Names |
| Masayuki | Man | Japanese Names |
| Masumi | Woman | Japanese Names |
| Masuyo | Woman | Japanese Names |