| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Marmaduke | MAHR-mə-dook | English (British, Rare) | ||
| Marvyn | MAHR-vin | English (Rare) | ||
| Marylu | mer-ee-LOO, mar-ee-LOO | English (Rare) | ||
| Masterman | MAS-tər-mən | English (Rare) | ||
| Maurene | maw-REEN, MAWR-een | English (Rare) | ||
| Maxene | mak-SEEN | English (Rare) | ||
| Maybelline | - | English (Rare) | ||
| Maynerd | MAY-nərd | English (Rare) | ||
| Mayson | MAY-sən | English (Rare) | ||
| Meade | MEED | English (Rare) | ||
| Mechislav | - | Russian (Rare), Medieval Slavic | ||
| Melantha | mə-LAN-thə | English (Rare) | ||
| Melesina | - | English (Rare) | ||
| Mellony | - | English (Rare) | ||
| Melyssa | mə-LIS-ə | English (Rare) |