| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Maximiano | mahk-see-MYAH-no (Spanish) | Spanish, Portuguese | ||
| Maximiliano | mahk-see-mee-LYAH-no (Spanish) | Spanish, Portuguese | ||
| Maximino | mahk-see-MEE-no (Spanish) | Spanish, Portuguese | ||
| Mayu | mah-yoo | Japanese | ||
| Mega | ME-gah | Indonesian | ||
| Megumi | me-goo-mee | Japanese | ||
| Mei (1) | - | Chinese | ||
| Mei (2) | me: | Japanese | ||
| Melati | - | Indonesian, Malay | ||
| Merita | me-REE-tah | Esperanto | ||
| MiĈJo | MEE-chyo | Esperanto | ||
| MiĤAelo | mee-khah-E-lo | Esperanto | ||
| Micaela | - | Italian, Spanish, Portuguese | ||
| Michi (1) | mee-chee | Japanese | ||
| Michiko | mee-chee-ko | Japanese |