| Marjeta | | - | Slovene | |
| Marko | | MAHR-ko (Finnish) | Ukrainian, Croatian, Serbian, Slovene, Bulgarian, Macedonian, Finnish, Basque | |
| Marta | | MAHR-tah (Spanish, Italian, Polish, Czech) | Spanish, Italian, Portuguese, Catalan, Polish, Czech, Slovak, German, Dutch, Romanian, Slovene, Bulg | |
| Martin | | MAHR-tən (English), mar-TEN (French), MAHR-teen (German, Finnish), MAHR-tin (Swedish, Norwegian, Danish), MAWR-teen (Hungarian), mahr-TIN (Bulgarian) | English, French, German, Swedish, Norwegian, Danish, Russian, Romanian, Czech, Slovak, Slovene, Croa | |
| Martina | | mahr-TEE-nah (Italian, Spanish, Dutch), mahr-TEEN-ə (English) | German, Italian, Spanish, Catalan, Czech, Slovak, Croatian, Slovene, English, Swedish, Dutch, Ancien | |
| Matej | | - | Slovak, Slovene, Croatian, Macedonian | |
| Mateja (1) | | - | Slovene, Croatian | |
| MatevŽ | | - | Slovene | |
| Matic | | - | Slovene | |
| Matija | | MAH-tee-yah (Croatian, Serbian) | Slovene, Croatian, Serbian | |
| MatjaŽ | | - | Slovene | |
| Melanija | | - | Serbian, Macedonian, Slovene, Latvian, Lithuanian | |
| Metod | | - | Slovene, Slovak | |
| Miha | | - | Slovene | |
| Mihael | | - | Slovene, Croatian | |