| Lucretius | | - | Ancient Roman | |
| Manius | | - | Ancient Roman | |
| Manlius | | - | Ancient Roman | |
| Marcella | | - | Italian, German, Ancient Roman | |
| Marcellina | | - | Ancient Roman | |
| Marcellinus | | - | Ancient Roman | |
| Marcellus | | - | Ancient Roman, German, Dutch | |
| Marcia | | MAHR-shə (English), MAHR-see-ə (English), MAHR-thyah (Spanish), MAHR-syah (Latin American Spanish) | English, Spanish, Ancient Roman | |
| Marciana | | - | Ancient Roman, Portuguese (Brazilian) | |
| Marcianus | | - | Ancient Roman | |
| Marcius | | - | Ancient Roman | |
| Marcus | | MAR-kuws (Ancient Roman, Biblical Latin), MAHR-kəs (English) | Ancient Roman, Biblical Latin, English, Swedish, Norwegian, Danish | |
| Mariana | | mə-RYA-nə (Portuguese), mah-RYAH-nah (Spanish) | Portuguese, Spanish, Romanian, Czech, Ancient Roman | |
| Marianus | | - | Ancient Roman | |
| Marinus | | - | Ancient Roman, Dutch | |