| Marian (2) | | MAHR-yahn (Polish) | Polish, Czech, Romanian | |
| Marianna | | mer-ee-AN-ə (English), mar-ee-AN-ə (English), mahr-YAHN-nah (Polish) | Italian, English, Hungarian, Slovak, Polish, Greek | |
| Marika | | MAH-ree-kah (Finnish) | Czech, Slovak, Polish, Hungarian, Greek, Finnish, Estonian | |
| Mariusz | | MAHR-yuwsh | Polish | |
| Marlena | | mahr-LEEN-ə (English), mahr-LE-nah (Polish) | English, Polish | |
| Marta | | MAHR-tah (Spanish, Italian, Polish, Czech) | Spanish, Italian, Portuguese, Catalan, Polish, Czech, Slovak, German, Dutch, Romanian, Slovene, Bulg | |
| Martyna | | mahr-TI-nah | Polish | |
| Maryla | | mah-RI-lah | Polish | |
| Marzanna (1) | | - | Polish | |
| Marzena | | mah-ZHE-nah | Polish | |
| Mateusz | | mah-TE-uwsh | Polish | |
| Matylda | | mah-TIL-dah (Polish) | Czech, Polish | |
| Maurycy | | mow-RI-tsi | Polish | |
| Melania | | me-LAHN-yah (Polish) | Italian, Spanish, Polish, Late Roman | |
| Metody | | me-TAW-di | Polish | |