| Manius | | - | Ancient Roman | |
| Manlius | | - | Ancient Roman | |
| Manuel | | mah-NWEL (Spanish), man-oo-EL (Portuguese), MAHN-oo-el (German) | Spanish, Portuguese, German, English, Italian, French, Romanian, Late Greek (Latinized) | |
| Manuela | | mah-noo-E-lah (German), mah-NWE-lah (Italian) | Spanish, Portuguese, Romanian, German, Italian | |
| Marcel | | mar-SEL (French), MAHR-tsel (Polish), MAHR-sel (Dutch, German) | French, Catalan, Romanian, Polish, Czech, Slovak, Dutch, German | |
| Marcela | | mahr-THE-lah (Spanish), mahr-SE-lah (Latin American Spanish), mahr-TSE-lah (Polish), mahr-CHE-lah (Romanian), MAHR-tse-lah (Czech) | Spanish, Polish, Romanian, Czech | |
| 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 | |