| Loukios | | - | Ancient Roman (Hellenized), Biblical Greek | |
| Lydia | | LID-ee-ə (English), LUY-dee-ah (German, Finnish) | English, German, Finnish, Biblical, Old Church Slavic, Biblical Latin, Biblical Greek | |
| Maala | | - | Biblical Latin, Biblical Greek | |
| Maeleth | | - | Biblical Latin, Biblical Greek | |
| Magdalene | | mahk-dah-LE-nə (German), MAG-də-lən (English), MAG-də-leen (English) | German, English, Biblical, Biblical Latin, Biblical Greek | |
| Manaem | | - | Biblical Greek | |
| Manasses | | - | Biblical, Biblical Latin, Biblical Greek | |
| Mariam | | - | Biblical Greek, Georgian, Armenian, Arabic | |
| Markos | | - | Greek, Ancient Greek, Biblical Greek | |
| Matthaios | | - | Biblical Greek | |
| Matthan | | - | Biblical, Biblical Latin, Biblical Greek | |
| Matthias | | mah-TEE-ahs (German), mə-THIE-əs (English) | Greek, German, Swedish, Norwegian, Danish, French, Dutch, Biblical, Biblical Latin, Biblical Greek | |
| Melchol | | - | Biblical Greek | |
| Merob | | - | Biblical Latin, Biblical Greek | |
| Micha | | - | Biblical Latin, Biblical Greek | |