| Mekdes | Sanctuary; Holy place | 👧 Girl | Amharic | — |
| Melati | Jasmine | 👧 Girl | Indonesian | — |
| Mele | Mary | 👧 Girl | Pacific | — |
| Melek | Angel | 👧 Girl | Turkish | — |
| Melissa | Honeybee | 👧 Girl | Portuguese | — |
| Melur | Jasmine | 👧 Girl | Malay | — |
| Memory | Memory; Remembrance | 👧 Girl | English | — |
| Menaka | A celestial nymph | 👧 Girl | Sinhala | — |
| Mentari | Sun | 👧 Girl | Indonesian | — |
| Mercedes | Mercies (Our Lady of Mercy) | 👧 Girl | Spanish | — |
| Mercy | Mercy; Compassion | 👧 Girl | English | — |
| Merdan | Brave; Manly | 👦 Boy | Turkmen | — |
| Mere | Mary | 👧 Girl | Māori | — |
| Mereani | Mary and Anne | 👧 Girl | Pacific | — |
| Meritxell | Our Lady of Meritxell, patron of Andorra | 👧 Girl | Catalan | — |
| Merjem | Mary | 👧 Girl | Bosnian | — |
| Meron | Holy oil; Chrism | 👧 Girl | Amharic | — |
| Mert | Brave; Manly | 👦 Boy | Turkish | — |
| Merve | A hill near Mecca | 👧 Girl | Turkish | — |
| Meryem | Mary | 👧 Girl | Arabic | — |
| Mesfin | Prince | 👦 Boy | Amharic | — |
| Meshal | Torch; Lantern | 👦 Boy | Arabic | — |
| Metta | Loving-kindness | 👧 Girl | Pali | — |
| Mhairi | Mary | 👧 Girl | Scottish | — |
| Mher | The hero of the Armenian epic | 👦 Boy | Armenian | — |
| Mi-young | Beautiful flower (미영 美英) | 👧 Girl | Korean | — |
| Mia | Mine; Beloved | 👧 Girl | International | — |
| Michael | Who is like God? | 👦 Boy | Hebrew | — |
| Michail | Who is like God? | 👦 Boy | Greek | — |
| Michal | Who is like God? | 👦 Boy | Czech | — |
| Midhun | Gemini; A pair | 👦 Boy | Malayalam | Simha |
| Midori | Green (緑) | 👧 Girl | Japanese | — |
| Migizi | Bald eagle (Ojibwe) | 👦 Boy | Native American | — |
| Miguel | Michael; Who is like God? | 👦 Boy | Spanish, Portuguese | — |
| Mihai | Who is like God? (Michael) | 👦 Boy | Romanian | — |
| Mihir | The sun | 👦 Boy | Sanskrit, Marathi | Simha |
| Mikaele | Who is like God? (Michael) | 👦 Boy | Pacific | — |
| Mikaere | Who is like God? (Michael) | 👦 Boy | Māori | — |
| Mikel | Who is like God? (Michael) | 👦 Boy | Basque | — |
| Mikhail | Who is like God? (Михаил) | 👦 Boy | Hebrew | — |
| Mikko | Who is like God? (Michael) | 👦 Boy | Finnish | — |
| Mikołaj | Victory of the people | 👦 Boy | Polish | — |
| Mila | Dear; Gracious | 👧 Girl | Dutch, Slavic | — |
| Milagros | Miracles | 👧 Girl | Spanish | — |
| Milan | Union; Meeting; Gracious; Dear | 👦 Boy | Sanskrit, Dutch, Serbian | Simha |
| Milda | The goddess of love | 👧 Girl | Lithuanian | — |
| Milena | Gracious; Dear (Милена) | 👧 Girl | Slavic | — |
| Milica | Gracious; Dear | 👧 Girl | Slavic | — |
| Millaray | Golden flower | 👧 Girl | Mapuche | — |
| Miloš | Favour; Grace | 👦 Boy | Serbian | — |
| Mimoza | Mimosa flower | 👧 Girl | Albanian | — |
| Min | King | 👦 Boy | Burmese | — |
| Min-ho | Quick; Vast (민호 敏浩) | 👦 Boy | Korean | — |
| Min-ji | Quick; Wisdom (민지 敏智) | 👧 Girl | Korean | — |
| Min-jun | Quick; Talented (민준 敏俊) | 👦 Boy | Korean | — |
| Min-seo | Quick; Auspicious (민서 敏瑞) | 👧 Girl | Korean | — |
| Mina | After St Menas, the Coptic martyr | 👦 Boy | Coptic | — |
| Minahil | Fountain of Paradise | 👧 Girl | Arabic | — |
| Minakshi | Fish-eyed | 👧 Girl | Sanskrit | Simha |
| Minato | Harbour (湊) | 👦 Boy | Japanese | — |
| Ming | Bright; Clear (明) | 👦 Boy | Chinese | — |
| Mingma | Born on Tuesday | 👦 Boy | Tibetan | Simha |
| Mingzhu | Bright pearl (明珠) | 👧 Girl | Chinese | — |
| Minh | Bright; Intelligent | 👦 Boy | Vietnamese | — |
| Mio | Beautiful cherry blossom (美桜) | 👧 Girl | Japanese | — |
| Mira | Ocean; Prosperous | 👧 Girl | Sanskrit | Simha |
| Mireia | Admirable (Mireille) | 👧 Girl | Catalan | — |
| Mirela | Admirable | 👧 Girl | Romanian | — |
| Miriam | Wished-for child; The sister of Moses | 👧 Girl | Hebrew | — |
| Mirjana | Miriam | 👧 Girl | Slavic | — |
| Miroslav | Peace and glory | 👦 Boy | Czech | — |
| Mirwais | Prince; Ruler (Mirwais Hotak) | 👦 Boy | Pashto | — |
| Mirza | Prince | 👦 Boy | Bosnian | — |
| Misaki | Beautiful blossom (美咲) | 👧 Girl | Japanese | — |
| Misbah | Lamp | 👧 Girl | Arabic | — |
| Mishal | Torch; Light | 👧 Girl | Urdu | — |
| Mitali | Friendship | 👧 Girl | Sanskrit, Gujarati | Simha |
| Mitesh | Few desires | 👦 Boy | Gujarati | Simha |
| Mithila | An ancient region; Sita | 👧 Girl | Bengali | — |
| Mithilesh | Lord of Mithila (King Janaka) | 👦 Boy | Maithili | Simha |
| Mithun | Gemini; A pair | 👦 Boy | Kannada | Simha |
| Mitsuki | Beautiful moon (美月) | 👧 Girl | Japanese | — |
| Mitta | Friend; Loving-kindness | 👧 Girl | Pali | — |
| Mizanur | Balance; Scale of justice | 👦 Boy | Bengali | — |
| Moana | Ocean; Sea | 👧 Girl | Hawaiian, Māori, Polynesian | — |
| Modou | Muhammad; Praiseworthy | 👦 Boy | West African | — |
| Moe | Rain; Sky | 🧒 Unisex | Burmese | — |
| Mohamed | Praiseworthy; The Prophet of Islam | 👦 Boy | Arabic, Dhivehi | — |
| Mohammad | Praiseworthy; The Prophet of Islam (محمد) | 👦 Boy | Persian | — |
| Mohammed | Praiseworthy; The Prophet of Islam | 👦 Boy | Arabic | — |
| Mohannad | Sword (made of Indian steel) | 👦 Boy | Arabic | — |
| Mohini | Enchanting | 👧 Girl | Sanskrit | Simha |
| Mohinur | Moonlight | 👧 Girl | Uzbek | — |
| Mohira | Skilful | 👧 Girl | Uzbek | — |
| Mohit | Charmed; Attracted | 👦 Boy | Sanskrit | Simha |
| Mohona | Attractive; Charming | 👧 Girl | Bengali | Simha |
| Mohsin | Benefactor; One who does good | 👦 Boy | Urdu | — |
| Moin | Helper; Supporter | 👦 Boy | Arabic | — |
| Moirrey | Mary | 👧 Girl | Manx | — |
| Moiz | Respected; Honoured | 👦 Boy | Urdu | — |
| Mojtaba | Chosen (مجتبی) | 👦 Boy | Persian | — |
| Moksh | Liberation; Salvation | 👦 Boy | Sanskrit | Simha |
| Momina | Believer; Pious | 👧 Girl | Arabic | — |
| Momoka | Peach blossom (桃花) | 👧 Girl | Japanese | — |
| Mona | Wish; Desire | 👧 Girl | Arabic | — |
| Mönkh | Eternal | 👦 Boy | Mongolian | — |
| Montserrat | Jagged mountain; Our Lady of Montserrat | 👧 Girl | Catalan | — |
| Moomal | The heroine of Moomal Rano | 👧 Girl | Sindhi | — |
| Moosa | Moses | 👦 Boy | Dhivehi | — |
| Morag | Great; Sun | 👧 Girl | Scottish | — |
| Morenike | I have found one to cherish | 👧 Girl | Yoruba | — |
| Moritz | Dark-skinned; Maurice | 👦 Boy | German | — |
| Moromi | Lovable | 👧 Girl | Assamese | Simha |
| Morteza | Chosen; A title of Imam Ali (مرتضی) | 👦 Boy | Persian | — |
| Moshe | Drawn from the water (Moses) | 👦 Boy | Hebrew | — |
| Mosi | First-born | 🧒 Unisex | Swahili | — |
| Mostafa | The chosen one | 👦 Boy | Arabic | — |
| Mou | Honey | 👧 Girl | Bengali | Simha |
| Moumita | Honey; Sweet friend | 👧 Girl | Bengali | Simha |
| Mounika | Silent | 👧 Girl | Telugu | Simha |